Frontier GPT-5.6 model for complex professional work with the highest reasoning capabilities.
LLM Gateway routes requests to the best providers that are able to handle your prompt size and parameters.
Frontier GPT-5.6 model for complex professional work with the highest reasoning capabilities. You can access it through LLM Gateway's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.
Pricing for GPT-5.6 Sol on LLM Gateway starts at $5.00 per million input tokens and $30.00 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.
GPT-5.6 Sol supports a context window of up to 1,050,000 tokens on its largest provider deployment.
GPT-5.6 Sol is served by AWS Mantle, Azure, OpenAI through LLM Gateway. Requests are automatically routed to the best available provider, with fallback when a provider has issues.
Yes. GPT-5.6 Sol supports both tool (function) calling and strict JSON output schema (upstream-enforced) through LLM Gateway.
GPT-5.6 Sol was released on July 9, 2026.