GPT-5.6 Sol Pro

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Prime Inferenceopenai/gpt-5.6-sol-progpt-sol

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Quick Info

Provider: Prime Inference
Model key: openai/gpt-5.6-sol-pro
Release date: Jul 9, 2026
Last updated: Jul 9, 2026
Knowledge cutoff: 2026-02-16
Input modalities
Output modalities
Capabilities

Cost

Input token cost: $5.00
Output token cost: $30.00

Limits

Output tokens: 128,000 tokens
Context window: 1,050,000 tokens

Transparent token rates

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Rates are shown per one million tokens. Combined means one million input plus one million output tokens.

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Latest news about GPT-5.6 Sol Pro

OpenRouter

Coverage

OpenRouter's model page explicitly attributes GPT-5.6 Sol Pro to OpenAI under the identifier openai/gpt-5.6-sol-pro and states it is "the same underlying model as GPT-5.6 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks," linking to OpenAI's reasoning-mode developer documentation Beyond model identity, the OpenRouter page enumerates the providers that serve the variant (OpenAI standard, OpenAI Flex at 50% off, OpenAI Fast, Azure, and Azure EU), with listed prices ranging from $2/$10 per 1M tokens on OpenAI Flex up to $5.50/$33 on Azure EU, and reported P50 latency of 1.87s with throughput of 10