PLPramaana

OpenAI

GPT-5.6 Sol

Release date: 7/9/2026

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OpenAI's deliberative flagship system, measured with the Sol reasoning profile.

Pramaana IndexAccuracy: StrongLatency: StandardCost: Standard
Accuracy / Pramaana Index
71.71%± 0.65
Latency / Pramaana Index
508.93s
Cost / Test / Pramaana Index
$3.50
Context window
1M
Max output tokens
128k
Input modality
Text · Image · File
Hyperparameter settings

temperature: 0.0

reasoning: extended

fallbacks: disabled

Benchmark performance for GPT-5.6 Sol

BenchmarksAccuracyRanking
Pramaana Index71.71% ± 0.652 / 35
Pramaana Multimodal Index69.70% ± 0.822 / 24
Legal Research Fidelity66.11% ± 0.994 / 18
Financial Modeling Agent61.82% ± 1.162 / 22
Clinical Documentation Safety65.41% ± 1.332 / 19
MATH-50084.71% ± 1.501 / 112
GPQA Diamond88.92% ± 1.671 / 121
MMLU-Pro86.41% ± 0.481 / 119
Adaptive Tutoring Dialogue67.31% ± 0.652 / 16
SWE-bench Verified64.02% ± 0.821 / 69
LiveCodeBench83.00% ± 0.991 / 127
Agentic Reliability57.90% ± 1.162 / 12
Strategic Games Arena63.92% ± 1.333 / 20
Benefits Navigator67.22% ± 1.502 / 16

License: Proprietary · Evaluation settings, model endpoints, and benchmark versions are frozen with each published run.

Read our methodology