GPT-5.6 Sol
OpenAI · 6 thinking configurations
Intelligence28.3
Input / 1M$4.00
Output / 1M$20.00
Context1M
Tariff: OpenAI · Source: artificial-analysis · USD per million tokens
Thinking configuration
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Compare this model’s measured thinking configurations.
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Efficient frontier: best measured score at each cost5 measured configurations · 1 without both values
Selected: thinking none · Click a point to switch configuration
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
Intelligence IndexArtificial Analysis composite index, not a percentage. Different versions of the index are not directly comparable.
28.3 pointsGPQA DiamondGraduate-level scientific questions. Measures specialist reasoning rather than web-search quality.
79.0 %Humanity’s Last ExamDifficult questions across many disciplines, compared under the same evaluation setup.
16.7 %SciCodeCode generation for scientific research problems.
47.7 %Terminal-Bench 2.1Agent tasks in a terminal environment. Results also depend on the evaluation harness.
74.2 %MMMU-ProMultimodal understanding of academic problems that include images.
71.9 %Omniscience accuracyFactual accuracy in Artificial Analysis's Omniscience evaluation.
48.7 %Specifications from the catalog
Inputfile, image, text
Outputtext
Tool callingYes
Structured outputYes
Speed66.3 tok/s
First token1.02 s
Maximum output128K
Catalog listing date2026-07-09