GPT-5.1

openai/gpt-5.1-20251113

OpenAI GPT-5.1, released on 2025-01-01, processes image, text, and file inputs to generate text output and supports tools and reasoning. It has a context length of 400 000 tokens, with pricing of $1.25 per million input tokens and $10 per million output tokens, and its weights are not publicly available.

  • tool use
  • structured outputs
  • reasoning

At a glance

provideropenai
releasedJan 1, 2025
context400K
input / M$1.25

Specifications

What the API gives you

Context window
400K tokens
Max output
128K tokens
Input price
$1.25 / 1M tokens
Output price
$10 / 1M tokens
Cache read
$0.13 / 1M tokens
Modalities
image, text, file → text
Knowledge cutoff
Released
Jan 1, 2025

Measured evidence

Public benchmark record

Design Arena Coding
1181 Elo2026-07-28
Design Arena Coding
1181 Elo2026-07-27
Design Arena Coding
1181 Elo2026-07-30
Design Arena Coding
1181 Elo2026-07-29
Design Arena Coding
1181 Elo2026-07-31
Design Arena Coding
1180 Elo2026-08-02
Design Arena Coding
1179 Elo2026-08-05
Design Arena Coding
1180 Elo2026-08-01
Design Arena Coding
1178 Elo2026-08-09
Design Arena Coding
1180 Elo2026-08-03
Design Arena Coding
1180 Elo2026-08-04
Design Arena Coding
1175 Elo2026-08-14
Design Arena Coding
1179 Elo2026-08-06
Design Arena Coding
1178 Elo2026-08-10
Design Arena Coding
1180 Elo2026-08-07
Design Arena Coding
1169 Elo2026-08-18
Design Arena Coding
1178 Elo2026-08-08
Design Arena Coding
1169 Elo2026-08-15
Design Arena Coding
1178 Elo2026-08-11
Design Arena Coding
1177 Elo2026-08-12
Design Arena Coding
1176 Elo2026-08-13
Design Arena Coding
1168 Elo2026-08-19
Design Arena Coding
1175 Elo2026-08-27
Design Arena Coding
1168 Elo2026-08-20
Design Arena Coding
1169 Elo2026-08-16
Design Arena Coding
1167 Elo2026-09-05
Design Arena Coding
1169 Elo2026-08-17
Design Arena Coding
1175 Elo2026-08-21
Design Arena Coding
1175 Elo2026-08-22
Design Arena Coding
1175 Elo2026-08-23
Design Arena Coding
1175 Elo2026-08-28
Design Arena Coding
1176 Elo2026-08-24
Design Arena Coding
1176 Elo2026-08-25
Design Arena Coding
1176 Elo2026-08-26
Design Arena Coding
1167 Elo2026-09-06
Design Arena Coding
1175 Elo2026-08-29
Design Arena Coding
1174 Elo2026-08-30
Design Arena Coding
1174 Elo2026-08-31
Design Arena Coding
1175 Elo2026-09-01
Design Arena Coding
1173 Elo2026-09-02
Design Arena Coding
1171 Elo2026-09-03
Design Arena Coding
1170 Elo2026-09-04
Design Arena UI
1178 Elo2026-07-28
Design Arena UI
1178 Elo2026-07-27
Design Arena UI
1178 Elo2026-07-30
Design Arena UI
1178 Elo2026-07-29
Design Arena UI
1178 Elo2026-07-31
Design Arena UI
1178 Elo2026-08-02
Design Arena UI
1178 Elo2026-08-01
Design Arena UI
1177 Elo2026-08-05
Design Arena UI
1174 Elo2026-08-09
Design Arena UI
1178 Elo2026-08-03
Design Arena UI
1178 Elo2026-08-04
Design Arena UI
1173 Elo2026-08-14
Design Arena UI
1177 Elo2026-08-06
Design Arena UI
1177 Elo2026-08-07
Design Arena UI
1175 Elo2026-08-10
Design Arena UI
1175 Elo2026-08-08
Design Arena UI
1171 Elo2026-08-18
Design Arena UI
1175 Elo2026-08-11
Design Arena UI
1172 Elo2026-08-15
Design Arena UI
1175 Elo2026-08-12
Design Arena UI
1175 Elo2026-08-13
Design Arena UI
1171 Elo2026-08-19
Design Arena UI
1172 Elo2026-08-16
Design Arena UI
1171 Elo2026-08-20
Design Arena UI
1169 Elo2026-08-27
Design Arena UI
1171 Elo2026-08-17
Design Arena UI
1165 Elo2026-09-05
Design Arena UI
1170 Elo2026-08-21
Design Arena UI
1170 Elo2026-08-22
Design Arena UI
1170 Elo2026-08-23
Design Arena UI
1170 Elo2026-08-24
Design Arena UI
1169 Elo2026-08-28
Design Arena UI
1170 Elo2026-08-25
Design Arena UI
1171 Elo2026-08-26
Design Arena UI
1166 Elo2026-09-06
Design Arena UI
1170 Elo2026-08-29
Design Arena UI
1170 Elo2026-08-30
Design Arena UI
1170 Elo2026-08-31
Design Arena UI
1169 Elo2026-09-01
Design Arena UI
1169 Elo2026-09-02
Design Arena UI
1167 Elo2026-09-03
Design Arena UI
1165 Elo2026-09-04
Design Arena Web-app Agent
1075 Elo2026-07-28
Design Arena Web-app Agent
1075 Elo2026-07-27
Design Arena Web-app Agent
1075 Elo2026-07-30
Design Arena Web-app Agent
1075 Elo2026-07-29
Design Arena Web-app Agent
1075 Elo2026-07-31
Design Arena Web-app Agent
1075 Elo2026-08-02
Design Arena Web-app Agent
1075 Elo2026-08-01
Design Arena Web-app Agent
1075 Elo2026-08-03
Design Arena Web-app Agent
1075 Elo2026-08-04
Design Arena Web-app Agent
1029 Elo2026-08-18
Design Arena Web-app Agent
1030 Elo2026-08-15
Design Arena Web-app Agent
1029 Elo2026-08-19
Design Arena Web-app Agent
1029 Elo2026-08-20
Design Arena Web-app Agent
1032 Elo2026-08-16
Design Arena Web-app Agent
1032 Elo2026-08-17
Design Arena Website
1192 Elo2026-07-28
Design Arena Website
1192 Elo2026-07-30
Design Arena Website
1192 Elo2026-07-27
Design Arena Website
1192 Elo2026-07-29
Design Arena Website
1191 Elo2026-07-31
Design Arena Website
1191 Elo2026-08-02
Design Arena Website
1191 Elo2026-08-01
Design Arena Website
1190 Elo2026-08-05
Design Arena Website
1191 Elo2026-08-03
Design Arena Website
1189 Elo2026-08-09
Design Arena Website
1191 Elo2026-08-04
Design Arena Website
1187 Elo2026-08-14
Design Arena Website
1190 Elo2026-08-06
Design Arena Website
1190 Elo2026-08-07
Design Arena Website
1189 Elo2026-08-10
Design Arena Website
1189 Elo2026-08-08
Design Arena Website
1178 Elo2026-08-18
Design Arena Website
1189 Elo2026-08-11
Design Arena Website
1178 Elo2026-08-15
Design Arena Website
1189 Elo2026-08-12
Design Arena Website
1187 Elo2026-08-13
Design Arena Website
1178 Elo2026-08-19
Design Arena Website
1178 Elo2026-08-16
Design Arena Website
1178 Elo2026-08-20
Design Arena Website
1187 Elo2026-08-27
Design Arena Website
1178 Elo2026-08-17
Design Arena Website
1183 Elo2026-09-05
Design Arena Website
1187 Elo2026-08-21
Design Arena Website
1187 Elo2026-08-22
Design Arena Website
1187 Elo2026-08-23
Design Arena Website
1187 Elo2026-08-24
Design Arena Website
1187 Elo2026-08-28
Design Arena Website
1187 Elo2026-08-25
Design Arena Website
1188 Elo2026-08-26
Design Arena Website
1180 Elo2026-09-06
Design Arena Website
1187 Elo2026-08-29
Design Arena Website
1186 Elo2026-08-30
Design Arena Website
1186 Elo2026-08-31
Design Arena Website
1187 Elo2026-09-01
Design Arena Website
1185 Elo2026-09-02
Design Arena Website
1184 Elo2026-09-03
Design Arena Website
1183 Elo2026-09-04
LMArena Creative Writing
1428 Elo2026-07-21
LMArena Creative Writing
1427 Elo2026-07-27
LMArena Creative Writing
1427 Elo2026-07-30
LMArena Creative Writing
1428 Elo2026-08-02
LMArena Creative Writing
1428 Elo2026-08-03
LMArena Creative Writing
1427 Elo2026-08-06
LMArena Creative Writing
1428 Elo2026-08-12
LMArena Creative Writing
1427 Elo2026-08-21
LMArena Creative Writing
1427 Elo2026-09-02
LMArena Creative Writing
1427 Elo2026-08-27
LMArena Creative Writing
1427 Elo2026-09-01
LMArena Long Query
1446 Elo2026-07-21
LMArena Long Query
1446 Elo2026-07-27
LMArena Long Query
1446 Elo2026-07-30
LMArena Long Query
1446 Elo2026-08-02
LMArena Long Query
1446 Elo2026-08-03
LMArena Long Query
1446 Elo2026-08-06
LMArena Long Query
1447 Elo2026-08-12
LMArena Long Query
1447 Elo2026-08-21
LMArena Long Query
1447 Elo2026-09-02
LMArena Long Query
1447 Elo2026-08-27
LMArena Long Query
1447 Elo2026-09-01
LMArena Math
1443 Elo2026-07-21
LMArena Math
1443 Elo2026-07-27
LMArena Math
1443 Elo2026-07-30
LMArena Math
1443 Elo2026-08-02
LMArena Math
1443 Elo2026-08-03
LMArena Math
1443 Elo2026-08-06
LMArena Math
1443 Elo2026-08-12
LMArena Math
1443 Elo2026-08-21
LMArena Math
1444 Elo2026-09-01
LMArena Math
1444 Elo2026-08-27
LMArena Text
1422 Elo2026-07-16
LMArena Text
1485 Elo2026-07-20
LMArena Text
1455 Elo2026-07-21
LMArena Text
1455 Elo2026-08-02
LMArena Text
1455 Elo2026-07-27
LMArena Text
1455 Elo2026-07-30
LMArena Text
1455 Elo2026-08-10
LMArena Text
1454 Elo2026-08-06
LMArena Text
1455 Elo2026-08-03
LMArena Text
1455 Elo2026-08-21
LMArena Text
1455 Elo2026-08-12
LMArena Text
1455 Elo2026-09-01
LMArena Text
1455 Elo2026-09-02
LMArena Text
1455 Elo2026-08-27
LMArena Vision
1233 Elo2026-07-12
LMArena Vision
1238 Elo2026-07-21
LMArena Vision
1239 Elo2026-07-26
LMArena Vision
1239 Elo2026-07-30
LMArena Vision
1239 Elo2026-08-02
LMArena Vision
1238 Elo2026-08-06
LMArena Vision
1238 Elo2026-08-21
LMArena Vision
1240 Elo2026-08-27
LMArena WebDev
1340 Elo2026-07-16
LMArena WebDev
1391 Elo2026-07-21
LMArena WebDev
1339 Elo2026-07-20
LMArena WebDev
1390 Elo2026-07-27
LMArena WebDev
1390 Elo2026-07-24
LMArena WebDev
1390 Elo2026-07-28
LMArena WebDev
1390 Elo2026-07-30
LMArena WebDev
1390 Elo2026-08-01
LMArena WebDev
1391 Elo2026-07-31
LMArena WebDev
1390 Elo2026-08-06
LMArena WebDev
1390 Elo2026-08-02
LMArena WebDev
1391 Elo2026-08-12
LMArena WebDev
1391 Elo2026-08-10
LMArena WebDev
1391 Elo2026-08-14
LMArena WebDev
1391 Elo2026-09-01
LMArena WebDev
1392 Elo2026-09-05
LMArena WebDev
1391 Elo2026-08-21
LMArena WebDev
1391 Elo2026-08-30

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 Frontend & UIEstablished evidence

    90% of intended weighted task evidence across 2 independent sources. 5 of 5 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.

  • 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.

  • 55% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LiveBench Reasoning or VLMEvalKit tasks. 3 of 4 configured evaluation feeds currently have results.

  • 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.

  • 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 Massive ContextProvisional evidence

    50% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from LongBench v2. 3 of 4 configured evaluation feeds currently have results.

  • Best LLM for OCR & DocumentsProvisional evidence

    45% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Structured-output eval or VLMEvalKit tasks. 3 of 5 configured evaluation feeds currently have results.

  • 45% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Structured-output eval or VLMEvalKit tasks. 3 of 5 configured evaluation feeds currently have results.

  • Best LLM for Charts & DiagramsProvisional evidence

    45% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Structured-output eval or VLMEvalKit tasks. 3 of 5 configured evaluation feeds currently have results.

  • Best LLM for Document ParsingProvisional evidence

    45% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Structured-output eval or VLMEvalKit tasks. 3 of 5 configured evaluation feeds currently have results.

  • Best LLM for Code CompletionProvisional evidence

    44% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Aider Polyglot or LiveBench Coding. 4 of 4 configured evaluation feeds currently have results.

  • Best LLM for CodingProvisional evidence

    42% of intended weighted task evidence across 2 independent sources; broader independent confirmation is still missing from Aider Polyglot or LiveBench Coding. 8 of 8 configured evaluation feeds currently have results.

  • 40% 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 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 SummarizationProvisional evidence

    40% 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 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.

  • 35% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from FACTS Grounding or LMArena Search. 4 of 6 configured evaluation feeds currently have results.

  • 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 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 Local LLM for CodingProvisional evidence

    26% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Aider Polyglot or LiveBench Coding. 5 of 5 configured evaluation feeds currently have results.

  • 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.

  • 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.

  • 25% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Aider Polyglot or LiveBench Coding. 6 of 6 configured evaluation feeds currently have results.

  • 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.

  • 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 Agentic CodingProvisional evidence

    13% of intended weighted task evidence across 1 independent source; broader independent confirmation is still missing from Design Arena Full-stack or Frontier-Bench. 8 of 8 configured evaluation feeds currently have results.

  • 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.

  • 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.

  • 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 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.

  • Best LLM for Autonomous AgentsProvisional evidence

    5% of intended weighted task evidence across 0 independent sources; 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 AI AgentsProvisional evidence

    5% of intended weighted task evidence across 0 independent sources; broader independent confirmation is still missing from Berkeley Function Calling or LiveBench Agentic Coding. 7 of 7 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.