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OpenAI

GPT-5.6 Sol

ReasoningClosed weightsModels.dev
Intelligence
47.0
Rank 29 of 744 measured models
Coding
77.4
Rank 6 of 298 measured models
Output speed
85.8 t/s
Rank 207 of 403 measured models
Price/1M
$8
Rank 603 of 659 measured models
Context window
1M
Rank 84 of 1199 measured models
Cost per task
$1.99
Rank 160 of 193 measured models

GPT-5.6 Sol (Max) scores 47.0 on the Artificial Analysis Intelligence Index, ranking 29th of 744 measured models. The closest models on this index are GPT-6 Sol (47.6), Grok 4.7 (46.4), and MiMo-V2.6-Pro (46.3). At $8 per million tokens (3:1 input/output blended price), it is more expensive than GPT-6 Sol ($4), Grok 4.7 ($3), and MiMo-V2.6-Pro ($0.544). With an output speed of 85.8 t/s, it is faster than Grok 4.7 (78.7 t/s) and MiMo-V2.6-Pro (45.8 t/s), slower than GPT-6 Sol (94.1 t/s).

Artificial Analysis Indices
Maximum
Intelligence47.0
Rank 29 of 744 measured models
Coding77.4
Rank 6 of 298 measured models
Agentic50.2
Rank 19 of 189 measured models
Reasoning levels
Each point is a reasoning level of this model: more reasoning often raises the score but costs more. Select a point to open that level.
Intelligence Indexmost efficient ↗Cost per task
Capability indexes
Performance in specific industries, measured by Artificial Analysis
Finance & Accounting49.0
Rank 31 of 218 measured models
Strategy & Ops54.3
Rank 23 of 218 measured models
Legal49.8
Rank 41 of 218 measured models
Healthcare & Medical45.4
Rank 14 of 82 measured models
Engineering48.9
Rank 27 of 217 measured models
Economics52.9
Rank 40 of 225 measured models
Standard Benchmarks
GPQA Diamond94.1%
Rank 7 of 619 measured models
HLE49.5%
Rank 27 of 664 measured models
SciCode57.1%
Rank 31 of 231 measured models
IFBench72.7%
Rank 47 of 450 measured models
AA-LCR84.0%
Rank 11 of 575 measured models
TerminalBench Hard65.9%
Rank 1 of 432 measured models
Terminal-Bench 2.188.0%
Rank 12 of 244 measured models
Terminal-Bench v439.9%
Rank 31 of 218 measured models
Models at a similar level
The closest models on the Intelligence Index, one configuration per family.

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