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Models / OpenAI

GPT-5.1

GPT-5 · Released 2025-11-13

OpenAI's November 2025 GPT-5.1 family. $1.25/$10 per 1M tokens, 400K context. Retired from ChatGPT March 2026; API snapshots may still exist. MedScribe leader on Vals (88.1%).

Legacy GPT-5.1 endpoints only — migrate to GPT-5.4/5.5 for new work.

#29 of 51 on AA Index · current snapshot
37 AA Index · 13 benchmark rows · 1 sourcesPosition is benchmark-specific — not a cross-family or cross-source ranking.
Composite60
Context400K
Input / 1M$1.3
Output / 1M$10
Knowledge cutoff2024-09-30
Output speed110 t/s
TTFT (default API)38.96s
Statuslightweight
ChatGPT
KnowledgeReasoningMathCodingAgenticLong context
Knowledge
87
Reasoning
87
Math
94
Coding
87
Agentic
52
Long context
75

80average across 6 tested families

Benchmark placements

Where GPT-5.1 places on each public benchmark source that publishes a row. Rank counts every model with a latest row in the same test — not a universal quality score.

BenchmarkFamilyRankScoreSourceDate
AA-LCRLong context#1/ 6475Artificial Analysis2026-07-21
AIMEMath#3/ 1994Artificial Analysis2026-07-21
LiveCodeBenchCoding#3/ 1387Artificial Analysis2026-07-21
MMLU-ProKnowledge#5/ 2187Artificial Analysis2026-07-21
AA time to first tokenPerformance#10/ 69Artificial Analysis2026-07-21
AA output speedPerformance#25/ 69Artificial Analysis2026-07-21
IFBenchReasoning#26/ 5773Artificial Analysis2026-07-21
GPQA DiamondReasoning#36/ 6987Artificial Analysis2026-07-21
Artificial Analysis Intelligence IndexReasoning#42/ 6737Artificial Analysis2026-07-21
Humanity's Last ExamReasoning#42/ 6527Artificial Analysis2026-07-21
Terminal-BenchAgentic#45/ 6952Artificial Analysis2026-07-21
SciCodeCoding#46/ 6543Artificial Analysis2026-07-21
τ³-Bench BankingAgentic#49/ 6414Artificial Analysis2026-07-21
Family context

The three highest-scoring carded models in each capability family. Where GPT-5.1 shows up, it's highlighted.

KnowledgeGPT-5.1 · 87
  1. 1
    GPT 5.5
    91
  2. 2
    Claude Opus 4.8
    91
  3. 3
    Claude Sonnet 4.6
    91
ReasoningGPT-5.1 · 87
  1. 1
    Claude Mythos Preview
    95
  2. 2
    GPT-5.6 Sol
    94
  3. 3
    Kimi K3
    94
MathGPT-5.1 · 94
  1. 1
    OpenAI o3
    99
  2. 2
    OpenAI o1
    97
  3. 3
    Gemini 3 Pro
    96
CodingGPT-5.1 · 87
  1. 1
    GPT 5.5
    96
  2. 2
    Claude Opus 4.8
    96
  3. 3
    Claude Opus 4.6
    96
AgenticGPT-5.1 · 52
  1. 1
    GPT 5.5
    100
  2. 2
    Claude Opus 4.8
    100
  3. 3
    Claude Fable 5
    100
Long contextGPT-5.1 · 75
  1. 1
    Kimi K3
    75
  2. 2
    GPT-5.1
    75
  3. 3
    GPT-5.6 Sol
    74
Newest receipts

Benchmark rows added to the public ledger for GPT-5.1 in the last 120 days. Older rows live in the full table below.

13 recent
BenchmarkFamilyScoreSourceDays ago
AA-LCRLong context75%Artificial Analysis2
AA output speedPerformance110 t/sArtificial Analysis2
AA time to first tokenPerformance38.96sArtificial Analysis2
AIMEMath94%Artificial Analysis2
Artificial Analysis Intelligence IndexReasoning36.9%Artificial Analysis2
GPQA DiamondReasoning87.3%Artificial Analysis2
Humanity's Last ExamReasoning26.5%Artificial Analysis2
IFBenchReasoning72.86%Artificial Analysis2
LiveCodeBenchCoding86.8%Artificial Analysis2
MMLU-ProKnowledge87%Artificial Analysis2
SciCodeCoding43.3%Artificial Analysis2
τ³-Bench BankingAgentic14.02%Artificial Analysis2
Terminal-BenchAgentic52.43%Artificial Analysis2
Family coverage

A high composite that hides a weak family is a trap. These bars surface the families where this model hasn't been publicly tested, and where it leads.

Knowledge87
Reasoning87
Math94
Coding87
Agentic52
Long context75
Price vs. performance
0255075100$0.10$0.30$1$3$10$30input USD / 1M tokens · log scale →← intelligence

Hover or tab any dot for name, score, and input price.

AnthropicOpenAIMistralAlibabaDeepSeekGoogleMoonshotMiniMaxxAIMetaZhipuXiaomiMeituanCohere

Full benchmark ledger

Every catalog benchmark for GPT-5.1. Scores link to the original source; gaps mean no public row exists yet.

13 sourced rows

13 of 32 catalog benchmarks have a sourced row for GPT-5.1.

Knowledge

Reasoning

Math

Coding

Agentic

Long context

Performance

Sources