GPT-5.1 Codex mini
OpenAI · 1 configuration
Intelligence20.4
Input / 1M$0.25
Output / 1M$2.00
Context400K
Tariff: OpenAI · Source: artificial-analysis · USD per million tokens
Thinking configuration
What does more thinking buy you?
Compare this model’s measured thinking configurations.
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Efficient frontier: best measured score at each cost1 measured configurations · 0 without both values
Selected: thinking high · Click a point to switch configuration
GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex
Intelligence IndexArtificial Analysis composite index, not a percentage. Different versions of the index are not directly comparable.
20.4 pointsGPQA DiamondGraduate-level scientific questions. Measures specialist reasoning rather than web-search quality.
81.3 %Humanity’s Last ExamDifficult questions across many disciplines, compared under the same evaluation setup.
18.5 %τ²-BenchTool use and interaction in assistance scenarios. Does not replace an evaluation of your integration.
62.9 %IFBenchVerifiable instruction following. A proxy for precision rather than a benchmark of creative style.
67.9 %MMMU-ProMultimodal understanding of academic problems that include images.
69.0 %Omniscience accuracyFactual accuracy in Artificial Analysis's Omniscience evaluation.
23.2 %Specifications from the catalog
Inputimage, text
Outputtext
Tool callingYes
Structured outputYes
SpeedNot available
First tokenNot available
Maximum output128K
Catalog listing date2025-11-13