#76OpenAI· released 2026-07-09

OpenAI: GPT-5.6 Sol Pro.

GPT-5.6 Sol Pro is the same underlying model as [GPT-5.6 Sol](https://openrouter.ai/openai/gpt-5.6-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

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Context
1.1M
Input $/1M
$2.00
Output $/1M
$10.00
Modality
file · image · text

Benchmarks

How these are aggregated →
Arena Elo
1597
LMArena — human blind votes
AA Index
76.0
Artificial Analysis composite
LiveBench
87.3
Contamination-resistant
GPQA
88.4%
Grad-level science reasoning
MMLU-Pro
88.7%
Broad knowledge
SWE-bench
79.3%
Real GitHub bugs (Verified)
Terminal-Bench
68.0%
Agentic shell tasks
ARC-AGI
26.5%
Abstract reasoning
Aider Polyglot
84.1%
Multi-language code editing
Speed
63 tok/s
Median output speed

Profile

OpenAI: GPT-5.6 Sol Pro is OpenAI's entry at position #76 on the current aggregated leaderboard. Its strongest signals are human preference voting, graduate-level science reasoning, real-world software engineering, and unattended agentic work. Every figure below is aggregated from the public sources listed on the homepage and refreshed on each pipeline run.

The score spread is comparatively complete for this model, but the standing advice still applies: treat gaps of a few points as ties and validate on your own workload before committing.

How this model's position is computed is documented in the methodology; what each benchmark actually measures is in the benchmark guide. See a figure that disagrees with its source? Report it — accepted corrections apply on the next refresh.

Nearby on the leaderboard