gpt-oss-120b
openai/gpt-oss-120b
OpenAI's gpt-oss-120b is a text-only model with a context length of 131,072 tokens. It is priced at $0.037 per million input tokens and $0.17 per million output tokens, supports tool usage and reasoning, and its weights are not publicly released. The model was released on 2024-06-01.
- tool use
- structured outputs
- reasoning
- open-weight
At a glance
Specifications
What the API gives you
- Context window
- 131K tokens
- Max output
- 118K tokens
- Input price
- $0.037 / 1M tokens
- Output price
- $0.17 / 1M tokens
- Cache read
- —
- Modalities
- text → text
- Knowledge cutoff
- Jun 30, 2024
- Released
- Jan 1, 1970
Measured evidence
Public benchmark record
- Aider Polyglot
- 41.8%2026-07-17
- Aider Polyglot
- 41.8%2026-07-21
- Aider Polyglot
- 41.8%2026-07-23
- Aider Polyglot
- 41.8%2026-07-27
- Aider Polyglot
- 41.8%2026-07-28
- Aider Polyglot
- 41.8%2026-07-29
- Aider Polyglot
- 41.8%2026-07-30
- Aider Polyglot
- 41.8%2026-07-31
- Aider Polyglot
- 41.8%2026-08-01
- Aider Polyglot
- 41.8%2026-08-02
- Aider Polyglot
- 41.8%2026-08-05
- Aider Polyglot
- 41.8%2026-08-03
- Aider Polyglot
- 41.8%2026-08-09
- Aider Polyglot
- 41.8%2026-08-04
- Aider Polyglot
- 41.8%2026-08-06
- Aider Polyglot
- 41.8%2026-08-07
- Aider Polyglot
- 41.8%2026-08-14
- Aider Polyglot
- 41.8%2026-08-08
- Aider Polyglot
- 41.8%2026-08-10
- Aider Polyglot
- 41.8%2026-08-11
- Aider Polyglot
- 41.8%2026-08-18
- Aider Polyglot
- 41.8%2026-08-12
- Aider Polyglot
- 41.8%2026-08-19
- Aider Polyglot
- 41.8%2026-08-13
- Aider Polyglot
- 41.8%2026-08-15
- Aider Polyglot
- 41.8%2026-08-26
- Aider Polyglot
- 41.8%2026-08-20
- Aider Polyglot
- 41.8%2026-08-16
- Aider Polyglot
- 41.8%2026-08-17
- Aider Polyglot
- 41.8%2026-08-21
- Aider Polyglot
- 41.8%2026-08-27
- Aider Polyglot
- 41.8%2026-08-22
- Aider Polyglot
- 41.8%2026-08-23
- Aider Polyglot
- 41.8%2026-08-24
- Aider Polyglot
- 41.8%2026-08-25
- Aider Polyglot
- 41.8%2026-09-05
- Aider Polyglot
- 41.8%2026-08-28
- Aider Polyglot
- 41.8%2026-09-06
- Aider Polyglot
- 41.8%2026-08-29
- Aider Polyglot
- 41.8%2026-08-30
- Aider Polyglot
- 41.8%2026-08-31
- Aider Polyglot
- 41.8%2026-09-01
- Aider Polyglot
- 41.8%2026-09-02
- Aider Polyglot
- 41.8%2026-09-03
- Aider Polyglot
- 41.8%2026-09-04
- Design Arena Coding
- 994 Elo2026-07-28
- Design Arena Coding
- 994 Elo2026-07-27
- Design Arena Coding
- 994 Elo2026-07-30
- Design Arena Coding
- 994 Elo2026-07-29
- Design Arena Coding
- 993 Elo2026-07-31
- Design Arena Coding
- 993 Elo2026-08-02
- Design Arena Coding
- 992 Elo2026-08-05
- Design Arena Coding
- 993 Elo2026-08-01
- Design Arena Coding
- 991 Elo2026-08-09
- Design Arena Coding
- 993 Elo2026-08-03
- Design Arena Coding
- 992 Elo2026-08-04
- Design Arena Coding
- 988 Elo2026-08-14
- Design Arena Coding
- 992 Elo2026-08-06
- Design Arena Coding
- 991 Elo2026-08-10
- Design Arena Coding
- 992 Elo2026-08-07
- Design Arena Coding
- 982 Elo2026-08-18
- Design Arena Coding
- 991 Elo2026-08-08
- Design Arena Coding
- 982 Elo2026-08-15
- Design Arena Coding
- 991 Elo2026-08-11
- Design Arena Coding
- 990 Elo2026-08-12
- Design Arena Coding
- 988 Elo2026-08-13
- Design Arena Coding
- 981 Elo2026-08-19
- Design Arena Coding
- 987 Elo2026-08-27
- Design Arena Coding
- 981 Elo2026-08-20
- Design Arena Coding
- 982 Elo2026-08-16
- Design Arena Coding
- 979 Elo2026-09-05
- Design Arena Coding
- 982 Elo2026-08-17
- Design Arena Coding
- 987 Elo2026-08-21
- Design Arena Coding
- 988 Elo2026-08-22
- Design Arena Coding
- 988 Elo2026-08-23
- Design Arena Coding
- 987 Elo2026-08-28
- Design Arena Coding
- 988 Elo2026-08-24
- Design Arena Coding
- 988 Elo2026-08-25
- Design Arena Coding
- 988 Elo2026-08-26
- Design Arena Coding
- 979 Elo2026-09-06
- Design Arena Coding
- 987 Elo2026-08-29
- Design Arena Coding
- 987 Elo2026-08-30
- Design Arena Coding
- 987 Elo2026-08-31
- Design Arena Coding
- 987 Elo2026-09-01
- Design Arena Coding
- 985 Elo2026-09-02
- Design Arena Coding
- 983 Elo2026-09-03
- Design Arena Coding
- 982 Elo2026-09-04
- Design Arena UI
- 960 Elo2026-07-28
- Design Arena UI
- 961 Elo2026-07-27
- Design Arena UI
- 960 Elo2026-07-30
- Design Arena UI
- 961 Elo2026-07-29
- Design Arena UI
- 960 Elo2026-07-31
- Design Arena UI
- 961 Elo2026-08-02
- Design Arena UI
- 961 Elo2026-08-01
- Design Arena UI
- 960 Elo2026-08-05
- Design Arena UI
- 961 Elo2026-08-03
- Design Arena UI
- 957 Elo2026-08-09
- Design Arena UI
- 960 Elo2026-08-04
- Design Arena UI
- 955 Elo2026-08-14
- Design Arena UI
- 959 Elo2026-08-06
- Design Arena UI
- 959 Elo2026-08-07
- Design Arena UI
- 957 Elo2026-08-10
- Design Arena UI
- 957 Elo2026-08-08
- Design Arena UI
- 954 Elo2026-08-18
- Design Arena UI
- 957 Elo2026-08-11
- Design Arena UI
- 955 Elo2026-08-15
- Design Arena UI
- 958 Elo2026-08-12
- Design Arena UI
- 958 Elo2026-08-13
- Design Arena UI
- 954 Elo2026-08-19
- Design Arena UI
- 955 Elo2026-08-16
- Design Arena UI
- 954 Elo2026-08-20
- Design Arena UI
- 953 Elo2026-08-27
- Design Arena UI
- 954 Elo2026-08-17
- Design Arena UI
- 949 Elo2026-09-05
- Design Arena UI
- 953 Elo2026-08-21
- Design Arena UI
- 954 Elo2026-08-22
- Design Arena UI
- 954 Elo2026-08-23
- Design Arena UI
- 954 Elo2026-08-24
- Design Arena UI
- 953 Elo2026-08-28
- Design Arena UI
- 954 Elo2026-08-25
- Design Arena UI
- 954 Elo2026-08-26
- Design Arena UI
- 950 Elo2026-09-06
- Design Arena UI
- 953 Elo2026-08-29
- Design Arena UI
- 953 Elo2026-08-30
- Design Arena UI
- 953 Elo2026-08-31
- Design Arena UI
- 953 Elo2026-09-01
- Design Arena UI
- 952 Elo2026-09-02
- Design Arena UI
- 950 Elo2026-09-03
- Design Arena UI
- 949 Elo2026-09-04
- Design Arena Website
- 993 Elo2026-07-28
- Design Arena Website
- 993 Elo2026-07-30
- Design Arena Website
- 993 Elo2026-07-27
- Design Arena Website
- 993 Elo2026-07-29
- Design Arena Website
- 992 Elo2026-07-31
- Design Arena Website
- 992 Elo2026-08-02
- Design Arena Website
- 992 Elo2026-08-01
- Design Arena Website
- 991 Elo2026-08-05
- Design Arena Website
- 992 Elo2026-08-03
- Design Arena Website
- 990 Elo2026-08-09
- Design Arena Website
- 991 Elo2026-08-04
- Design Arena Website
- 987 Elo2026-08-14
- Design Arena Website
- 991 Elo2026-08-06
- Design Arena Website
- 991 Elo2026-08-07
- Design Arena Website
- 990 Elo2026-08-10
- Design Arena Website
- 990 Elo2026-08-08
- Design Arena Website
- 979 Elo2026-08-18
- Design Arena Website
- 990 Elo2026-08-11
- Design Arena Website
- 979 Elo2026-08-15
- Design Arena Website
- 989 Elo2026-08-12
- Design Arena Website
- 988 Elo2026-08-13
- Design Arena Website
- 979 Elo2026-08-19
- Design Arena Website
- 979 Elo2026-08-16
- Design Arena Website
- 979 Elo2026-08-20
- Design Arena Website
- 987 Elo2026-08-27
- Design Arena Website
- 979 Elo2026-08-17
- Design Arena Website
- 983 Elo2026-09-05
- Design Arena Website
- 987 Elo2026-08-21
- Design Arena Website
- 988 Elo2026-08-22
- Design Arena Website
- 988 Elo2026-08-23
- Design Arena Website
- 988 Elo2026-08-24
- Design Arena Website
- 988 Elo2026-08-28
- Design Arena Website
- 988 Elo2026-08-25
- Design Arena Website
- 988 Elo2026-08-26
- Design Arena Website
- 981 Elo2026-09-06
- Design Arena Website
- 987 Elo2026-08-29
- Design Arena Website
- 987 Elo2026-08-30
- Design Arena Website
- 987 Elo2026-08-31
- Design Arena Website
- 987 Elo2026-09-01
- Design Arena Website
- 986 Elo2026-09-02
- Design Arena Website
- 984 Elo2026-09-03
- Design Arena Website
- 983 Elo2026-09-04
- LMArena Creative Writing
- 1274 Elo2026-07-21
- LMArena Creative Writing
- 1273 Elo2026-07-27
- LMArena Creative Writing
- 1273 Elo2026-07-30
- LMArena Creative Writing
- 1273 Elo2026-08-02
- LMArena Creative Writing
- 1273 Elo2026-08-03
- LMArena Creative Writing
- 1274 Elo2026-08-06
- LMArena Creative Writing
- 1274 Elo2026-08-12
- LMArena Creative Writing
- 1273 Elo2026-08-21
- LMArena Creative Writing
- 1274 Elo2026-09-02
- LMArena Creative Writing
- 1273 Elo2026-08-27
- LMArena Creative Writing
- 1274 Elo2026-09-01
- LMArena Instruction Following
- 1319 Elo2026-07-21
- LMArena Instruction Following
- 1320 Elo2026-07-27
- LMArena Instruction Following
- 1320 Elo2026-07-30
- LMArena Instruction Following
- 1319 Elo2026-08-02
- LMArena Instruction Following
- 1319 Elo2026-08-03
- LMArena Instruction Following
- 1320 Elo2026-08-06
- LMArena Instruction Following
- 1319 Elo2026-08-12
- LMArena Instruction Following
- 1319 Elo2026-08-21
- LMArena Instruction Following
- 1318 Elo2026-09-02
- LMArena Instruction Following
- 1318 Elo2026-08-27
- LMArena Instruction Following
- 1318 Elo2026-09-01
- LMArena Long Query
- 1319 Elo2026-07-21
- LMArena Long Query
- 1319 Elo2026-07-27
- LMArena Long Query
- 1319 Elo2026-07-30
- LMArena Long Query
- 1319 Elo2026-08-02
- LMArena Long Query
- 1319 Elo2026-08-03
- LMArena Long Query
- 1319 Elo2026-08-06
- LMArena Long Query
- 1319 Elo2026-08-12
- LMArena Long Query
- 1319 Elo2026-08-21
- LMArena Long Query
- 1319 Elo2026-09-02
- LMArena Long Query
- 1319 Elo2026-08-27
- LMArena Long Query
- 1319 Elo2026-09-01
- LMArena Math
- 1388 Elo2026-07-21
- LMArena Math
- 1388 Elo2026-07-27
- LMArena Math
- 1388 Elo2026-07-30
- LMArena Math
- 1388 Elo2026-08-02
- LMArena Math
- 1388 Elo2026-08-03
- LMArena Math
- 1388 Elo2026-08-06
- LMArena Math
- 1388 Elo2026-08-12
- LMArena Math
- 1388 Elo2026-08-21
- LMArena Math
- 1387 Elo2026-09-01
- LMArena Math
- 1387 Elo2026-08-27
- LMArena Text
- 1352 Elo2026-07-21
- LMArena Text
- 1352 Elo2026-07-27
- LMArena Text
- 1352 Elo2026-07-30
- LMArena Text
- 1352 Elo2026-08-02
- LMArena Text
- 1352 Elo2026-08-10
- LMArena Text
- 1352 Elo2026-08-06
- LMArena Text
- 1352 Elo2026-08-03
- LMArena Text
- 1352 Elo2026-08-21
- LMArena Text
- 1352 Elo2026-08-12
- LMArena Text
- 1352 Elo2026-09-01
- LMArena Text
- 1352 Elo2026-09-02
- LMArena Text
- 1352 Elo2026-08-27
- SWE-rebench‡
- 27.3% ± 0.42026-03-01tools
- SWE-rebench‡
- 37.0% ± 3.52026-01-01tools
LMArena data licensed CC-BY-4.0. Aider (Apache-2.0) and SWE-bench (MIT) are open. Design Arena uses blind human preference. ‡ Submitted scaffold plus model result. Compare the harness and effort settings, not only the model name.
Open-weight model on Hugging Face.
Task evidence
How broad is the support?
Each status is exact to this model version and the selected task. Official release claims remain provisional.
- Best LLM for Debugging & Code ReviewEstablished evidence
60% of intended weighted task evidence across 2 independent sources. 6 of 6 configured evaluation feeds currently have results.
- Best LLM for Business WritingProvisional evidence
70% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Marketing CopyProvisional evidence
70% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Chat & RoleplayProvisional evidence
70% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or LiveBench Language. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Roleplay & CharacterProvisional evidence
70% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or LiveBench Language. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Creative WritingProvisional evidence
60% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or LiveBench Language. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for WritingProvisional evidence
60% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or LiveBench Language. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Frontend & UIProvisional evidence
60% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Coding or LMArena WebDev. 5 of 5 configured evaluation feeds currently have results.
- Best Local LLM for CodingProvisional evidence
56% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from LiveBench Coding or LMArena WebDev. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for a General AssistantProvisional evidence
55% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or LiveBench Reasoning. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for CodingProvisional evidence
50% of intended weighted task evidence across 3 independent sources; broader independent confirmation is still missing from LiveBench Coding or LMArena WebDev. 8 of 8 configured evaluation feeds currently have results.
- Best LLM for Logic & Problem SolvingProvisional evidence
50% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or LiveBench Reasoning. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Competition MathProvisional evidence
40% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Mathematics or LiveBench Reasoning. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Math & ReasoningProvisional evidence
40% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Mathematics or LiveBench Reasoning. 5 of 5 configured evaluation feeds currently have results.
- Best Value LLMProvisional evidence
36% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or Route reliability. 3 of 4 configured evaluation feeds currently have results.
- Best Open-Weight LLM for Self-HostingProvisional evidence
33% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or Route reliability. 3 of 4 configured evaluation feeds currently have results.
- Best LLM for Code CompletionProvisional evidence
31% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Coding or LMArena WebDev. 4 of 4 configured evaluation feeds currently have results.
- Best LLM for Autonomous AgentsProvisional evidence
29% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Frontier-Bench or LiveBench Agentic Coding. 7 of 7 configured evaluation feeds currently have results.
- Best LLM for Fast SummariesProvisional evidence
29% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or Route reliability. 3 of 4 configured evaluation feeds currently have results.
- Best LLM for Literary TranslationProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or LiveBench Language. 4 of 5 configured evaluation feeds currently have results.
- Best Cheap LLM for High VolumeProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or Route reliability. 3 of 4 configured evaluation feeds currently have results.
- Best LLM for Everyday TranslationProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or LiveBench Language. 4 of 5 configured evaluation feeds currently have results.
- Cheapest Capable LLMProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or Route reliability. 3 of 4 configured evaluation feeds currently have results.
- Best LLM for TranslationProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Instruction Following or LiveBench Language. 4 of 5 configured evaluation feeds currently have results.
- Best LLM for Massive ContextProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LMArena Document or LongBench v2. 3 of 4 configured evaluation feeds currently have results.
- Best LLM for Agentic CodingProvisional evidence
23% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Design Arena Full-stack or Design Arena Web-apps. 8 of 8 configured evaluation feeds currently have results.
- Best LLM for Document SummarizationProvisional evidence
20% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from FACTS Grounding or LiveBench Instruction Following. 4 of 6 configured evaluation feeds currently have results.
- Best LLM for SummarizationProvisional evidence
20% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from FACTS Grounding or LiveBench Instruction Following. 4 of 6 configured evaluation feeds currently have results.
- Best LLM for AI AgentsProvisional evidence
20% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Berkeley Function Calling or LiveBench Agentic Coding. 7 of 7 configured evaluation feeds currently have results.
- Best LLM for Hermes AgentProvisional evidence
18% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Berkeley Function Calling or LMArena Agent. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for OpenHandsProvisional evidence
18% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Berkeley Function Calling or LMArena Agent. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for GooseProvisional evidence
18% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Berkeley Function Calling or LMArena Agent. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for RAG & Long ContextProvisional evidence
18% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from FACTS Grounding or LMArena Document. 4 of 6 configured evaluation feeds currently have results.
- Best LLM for OpenClawProvisional evidence
18% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Berkeley Function Calling or LMArena Agent. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for JSON & Schema OutputProvisional evidence
17% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Berkeley Function Calling or LiveBench Data Analysis. 4 of 5 configured evaluation feeds currently have results.
- Best LLM for Structured Data ExtractionProvisional evidence
17% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Berkeley Function Calling or LiveBench Data Analysis. 4 of 5 configured evaluation feeds currently have results.
- Best LLM for High-Volume ExtractionProvisional evidence
13% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from LiveBench Data Analysis or Route reliability. 2 of 4 configured evaluation feeds currently have results.
- Best LLM for Tool & Function CallingProvisional evidence
10% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from Berkeley Function Calling or LMArena Agent. 4 of 5 configured evaluation feeds currently have results.
- Best LLM for Computer & Browser UseProvisional evidence
10% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from Berkeley Function Calling or LMArena Agent. 4 of 4 configured evaluation feeds currently have results.
- Best LLM for OCR & DocumentsProvisional evidence
10% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from LMArena Document or LMArena Vision. 3 of 5 configured evaluation feeds currently have results.
- Best LLM for Image UnderstandingProvisional evidence
10% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from LiveBench Reasoning or LMArena Vision. 3 of 4 configured evaluation feeds currently have results.
- Best LLM for Vision & DocumentsProvisional evidence
10% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from LMArena Document or LMArena Vision. 3 of 5 configured evaluation feeds currently have results.
- Best LLM for Grounded RAGProvisional evidence
10% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from CRAG or FACTS Grounding. 2 of 5 configured evaluation feeds currently have results.
- Best LLM for Charts & DiagramsProvisional evidence
10% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from LMArena Document or LMArena Vision. 3 of 5 configured evaluation feeds currently have results.
- Best LLM for Document ParsingProvisional evidence
10% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from LMArena Document or LMArena Vision. 3 of 5 configured evaluation feeds currently have results.
Recommendation coverage
Where this model appears
Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.