GPT-5.4 Nano
openai/gpt-5.4-nano-20260317
OpenAI’s GPT-5.4 Nano, released on 2026‑03‑17, accepts file, image, and text inputs and produces text output. It supports tool use and reasoning, offers a context length of 400 000 tokens, and is not provided as open weights. Pricing is $0.20 per million input tokens and $1.25 per million output tokens.
- tool use
- structured outputs
- reasoning
At a glance
Specifications
What the API gives you
- Context window
- 400K tokens
- Max output
- 128K tokens
- Input price
- $0.20 / 1M tokens
- Output price
- $1.25 / 1M tokens
- Cache read
- $0.020 / 1M tokens
- Modalities
- file, image, text → text
- Knowledge cutoff
- Aug 31, 2025
- Released
- Aug 7, 2025
Measured evidence
Public benchmark record
- LiveBench Agentic Coding
- 46.8%2026-06-25
- LiveBench Coding
- 70.8%2026-06-25
- LiveBench Data Analysis
- 67.6%2026-06-25
- LiveBench Instruction Following
- 67.2%2026-06-25
- LiveBench Language
- 62.5%2026-06-25
- LiveBench Math
- 91.0%2026-06-25
- LiveBench Reasoning
- 81.1%2026-06-25
- LMArena Creative Writing
- 1315 Elo2026-07-21
- LMArena Creative Writing
- 1316 Elo2026-07-27
- LMArena Creative Writing
- 1316 Elo2026-07-30
- LMArena Creative Writing
- 1315 Elo2026-08-02
- LMArena Creative Writing
- 1315 Elo2026-08-03
- LMArena Creative Writing
- 1316 Elo2026-08-06
- LMArena Creative Writing
- 1317 Elo2026-08-12
- LMArena Creative Writing
- 1316 Elo2026-08-21
- LMArena Creative Writing
- 1316 Elo2026-09-02
- LMArena Creative Writing
- 1315 Elo2026-08-27
- LMArena Creative Writing
- 1316 Elo2026-09-01
- LMArena Instruction Following
- 1363 Elo2026-07-21
- LMArena Instruction Following
- 1362 Elo2026-07-27
- LMArena Instruction Following
- 1362 Elo2026-07-30
- LMArena Instruction Following
- 1362 Elo2026-08-02
- LMArena Instruction Following
- 1362 Elo2026-08-03
- LMArena Instruction Following
- 1363 Elo2026-08-06
- LMArena Instruction Following
- 1363 Elo2026-08-12
- LMArena Instruction Following
- 1363 Elo2026-08-21
- LMArena Instruction Following
- 1363 Elo2026-09-02
- LMArena Instruction Following
- 1363 Elo2026-08-27
- LMArena Instruction Following
- 1363 Elo2026-09-01
- LMArena Long Query
- 1368 Elo2026-07-21
- LMArena Long Query
- 1367 Elo2026-07-27
- LMArena Long Query
- 1367 Elo2026-07-30
- LMArena Long Query
- 1366 Elo2026-08-02
- LMArena Long Query
- 1367 Elo2026-08-06
- LMArena Long Query
- 1366 Elo2026-08-03
- LMArena Long Query
- 1367 Elo2026-08-12
- LMArena Long Query
- 1366 Elo2026-08-21
- LMArena Long Query
- 1366 Elo2026-09-02
- LMArena Long Query
- 1366 Elo2026-08-27
- LMArena Long Query
- 1366 Elo2026-09-01
- LMArena Math
- 1407 Elo2026-07-21
- LMArena Math
- 1406 Elo2026-07-27
- LMArena Math
- 1406 Elo2026-07-30
- LMArena Math
- 1405 Elo2026-08-02
- LMArena Math
- 1405 Elo2026-08-03
- LMArena Math
- 1405 Elo2026-08-06
- LMArena Math
- 1405 Elo2026-08-12
- LMArena Math
- 1405 Elo2026-08-21
- LMArena Math
- 1405 Elo2026-09-01
- LMArena Math
- 1405 Elo2026-08-27
- LMArena Text
- 1482 Elo2026-07-20
- LMArena Text
- 1404 Elo2026-07-21
- LMArena Text
- 1403 Elo2026-07-27
- LMArena Text
- 1403 Elo2026-07-30
- LMArena Text
- 1402 Elo2026-08-10
- LMArena Text
- 1402 Elo2026-08-02
- LMArena Text
- 1403 Elo2026-08-06
- LMArena Text
- 1402 Elo2026-08-03
- LMArena Text
- 1402 Elo2026-08-21
- LMArena Text
- 1402 Elo2026-08-12
- LMArena Text
- 1402 Elo2026-09-01
- LMArena Text
- 1402 Elo2026-09-02
- LMArena Text
- 1402 Elo2026-08-27
- LMArena Vision
- 1201 Elo2026-07-12
- LMArena Vision
- 1206 Elo2026-07-21
- LMArena Vision
- 1203 Elo2026-07-26
- LMArena Vision
- 1203 Elo2026-07-30
- LMArena Vision
- 1202 Elo2026-08-02
- LMArena Vision
- 1202 Elo2026-08-06
- LMArena Vision
- 1201 Elo2026-08-21
- LMArena Vision
- 1201 Elo2026-08-27
LMArena data licensed CC-BY-4.0. Aider (Apache-2.0) and SWE-bench (MIT) are open. Design Arena uses blind human preference.
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 Competition MathEstablished evidence
100% of intended weighted task evidence across 2 independent sources. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Business WritingEstablished evidence
100% of intended weighted task evidence across 2 independent sources. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Logic & Problem SolvingEstablished evidence
100% of intended weighted task evidence across 2 independent sources. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Marketing CopyEstablished evidence
100% of intended weighted task evidence across 2 independent sources. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Chat & RoleplayEstablished evidence
100% of intended weighted task evidence across 2 independent sources. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Creative WritingEstablished evidence
100% of intended weighted task evidence across 2 independent sources. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for WritingEstablished evidence
100% of intended weighted task evidence across 2 independent sources. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Roleplay & CharacterEstablished evidence
100% of intended weighted task evidence across 2 independent sources. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for Math & ReasoningEstablished evidence
100% of intended weighted task evidence across 2 independent sources. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for a General AssistantEstablished evidence
100% of intended weighted task evidence across 2 independent sources. 5 of 5 configured evaluation feeds currently have results.
- Best Open-Weight LLM for Self-HostingEstablished evidence
67% of intended weighted task evidence across 2 independent sources. 3 of 4 configured evaluation feeds currently have results.
- Best LLM for Image UnderstandingEstablished evidence
65% of intended weighted task evidence across 2 independent sources. 3 of 4 configured evaluation feeds currently have results.
- Best LLM for Fast SummariesEstablished evidence
64% of intended weighted task evidence across 2 independent sources. 3 of 4 configured evaluation feeds currently have results.
- Best Value LLMEstablished evidence
64% of intended weighted task evidence across 2 independent sources. 3 of 4 configured evaluation feeds currently have results.
- Best LLM for Literary TranslationProvisional evidence
55% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from WMT translation. 4 of 5 configured evaluation feeds currently have results.
- Best LLM for Everyday TranslationProvisional evidence
55% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from WMT translation. 4 of 5 configured evaluation feeds currently have results.
- Best LLM for TranslationProvisional evidence
55% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from WMT translation. 4 of 5 configured evaluation feeds currently have results.
- Best Cheap LLM for High VolumeProvisional evidence
50% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from Route reliability. 3 of 4 configured evaluation feeds currently have results.
- Cheapest Capable LLMProvisional evidence
50% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from Route reliability. 3 of 4 configured evaluation feeds currently have results.
- Best LLM for Code CompletionProvisional evidence
50% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Aider Polyglot or LMArena WebDev. 4 of 4 configured evaluation feeds currently have results.
- Best LLM for Document SummarizationProvisional evidence
40% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from FACTS Grounding or LMArena Document. 4 of 6 configured evaluation feeds currently have results.
- Best LLM for SummarizationProvisional evidence
40% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from FACTS Grounding or LMArena Document. 4 of 6 configured evaluation feeds currently have results.
- Best LLM for JSON & Schema OutputProvisional evidence
39% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from Berkeley Function Calling or Structured-output eval. 4 of 5 configured evaluation feeds currently have results.
- Best LLM for Structured Data ExtractionProvisional evidence
39% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from Berkeley Function Calling or Structured-output eval. 4 of 5 configured evaluation feeds currently have results.
- Best LLM for High-Volume ExtractionProvisional evidence
31% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Route reliability or Structured-output eval. 2 of 4 configured evaluation feeds currently have results.
- Best Local LLM for CodingProvisional evidence
30% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Aider Polyglot or LMArena WebDev. 5 of 5 configured evaluation feeds currently have results.
- Best LLM for CodingProvisional evidence
26% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Aider Polyglot or Design Arena Coding. 8 of 8 configured evaluation feeds currently have results.
- Best LLM for Debugging & Code ReviewProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Aider Polyglot or LMArena WebDev. 6 of 6 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 OCR & DocumentsProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LMArena Document or Structured-output eval. 3 of 5 configured evaluation feeds currently have results.
- Best LLM for Vision & DocumentsProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LMArena Document or Structured-output eval. 3 of 5 configured evaluation feeds currently have results.
- Best LLM for Charts & DiagramsProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LMArena Document or Structured-output eval. 3 of 5 configured evaluation feeds currently have results.
- Best LLM for Document ParsingProvisional evidence
25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LMArena Document or Structured-output eval. 3 of 5 configured evaluation feeds currently have results.
- Best LLM for Agentic CodingProvisional evidence
19% 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 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 Autonomous AgentsProvisional evidence
17% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Frontier-Bench or LMArena Agent. 7 of 7 configured evaluation feeds currently have results.
- Best LLM for AI AgentsProvisional evidence
15% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Berkeley Function Calling or LMArena Agent. 7 of 7 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 Frontend & UIProvisional evidence
10% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Design Arena Coding or Design Arena UI. 5 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 Hermes AgentProvisional evidence
6% of intended weighted task evidence across 0 independent sources; 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
6% of intended weighted task evidence across 0 independent sources; 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
6% of intended weighted task evidence across 0 independent sources; 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 OpenClawProvisional evidence
6% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from Berkeley Function Calling or LMArena Agent. 5 of 5 configured evaluation feeds currently have results.
Recommendation coverage
Where this model appears
Not currently included in a published recommendation. The task evidence panel above says exactly what is confirmed and what is still missing.
Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.