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GPT-5.6 Sol

Multimodal Frontier Mixture-of-Experts
Official Source & Paper
OpenAI logo OpenAI 📄 Proprietary API 🌍 United States (US) 🗓️ Effective Date: 18.07.2026

The standard general-purpose workhorse of OpenAI's GPT-5.6 family, uniting multi-turn reasoning with omnimodal media understanding.

Model Size / Parameters Proprietary Frontier Architecture: Multimodal Frontier Mixture-of-Experts
Context Window (Input) 256k tokens Token Capacity
Max Output Tokens 32k tokens Single Generation Limit
Supported Modalities Text, Code, Vision, Audio Native Multimodal Ingestion
License & Access Proprietary API Open Weights vs. API
Release Date July 2026 Effective Date: 18.07.2026

Verified Benchmark Results

Standardized academic and industry evaluation benchmarks (Effective Date: 18.07.2026).

MMLU-Pro / 5-Shot General Intellect
92.4%
SWE-bench Verified Software Engineering
65.8%
MATH 500 / AIME Mathematical Reasoning
94.6%
GPQA Diamond Doctoral Science
77.5%
HumanEval / Python Algorithm Synthesis
93.2%

Pricing & Cost Efficiency

Official API token pricing and self-hosted licensing terms.

Input Pricing (Prompt)
$2.50 / 1M tokens
Per 1 million processed tokens
Output Pricing (Generation)
$10.00 / 1M tokens
Per 1 million generated tokens
Verified Datasheet: Source: OpenAI Research Documentation • Effective Date: 18.07.2026
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