GPT-5.6 Terra
OpenAI · 6 thinking configurations
Intelligence34.2
Input / 1M$2.00
Output / 1M$12.00
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 cost6 measured configurations · 0 without both values
Selected: thinking high · Click a point to switch configuration
GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...
Intelligence IndexArtificial Analysis composite index, not a percentage. Different versions of the index are not directly comparable.
34.2 pointsDeepSWE · pass@1Software-engineering tasks on mini-swe-agent v1.1. Pass@1 across evaluated runs, with measured cost per task. The 95% intervals may overlap.
53.8 % ±4.3GPQA DiamondGraduate-level scientific questions. Measures specialist reasoning rather than web-search quality.
89.6 %Humanity’s Last ExamDifficult questions across many disciplines, compared under the same evaluation setup.
38.5 %SciCodeCode generation for scientific research problems.
52.4 %Terminal-Bench 2.1Agent tasks in a terminal environment. Results also depend on the evaluation harness.
75.7 %τ²-BenchTool use and interaction in assistance scenarios. Does not replace an evaluation of your integration.
78.4 %IFBenchVerifiable instruction following. A proxy for precision rather than a benchmark of creative style.
64.4 %MMMU-ProMultimodal understanding of academic problems that include images.
79.1 %Omniscience accuracyFactual accuracy in Artificial Analysis's Omniscience evaluation.
45.5 %Specifications from the catalog
Inputfile, image, text
Outputtext
Tool callingYes
Structured outputYes
Speed79.4 tok/s
First token2.61 s
Maximum output128K
Catalog listing date2026-07-09
DeepSWE v1.1 · 113 tasks · mini-swe-agent · cost $1.13 / task · 34 mean steps · 21.5K mean output tokens. Published by the source 9/22/2026.