Last refreshed 2026-07-09. Next refresh: weekly.
Why use GPT-5.6 Sol on OpenRouter?
OpenRouter offers GPT-5.6 Sol with pay-as-you-go pricing at $5.00/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare GPT-5.6 Sol across 2 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: openai/gpt-5.6-solopenai/gpt-5.6-solRequest example
openai/gpt-5.6-sol.Gotchas
- Use provider model ID "openai/gpt-5.6-sol", not the LLMReference slug "gpt-5.6-sol".
Compare GPT-5.6 Sol Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenAI API | $5.00 | $30.00 |
| OpenRouter | $5.00 | $30.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $5.00 |
| Output tokens | $30.00 |
Capabilities
About GPT-5.6 Sol
OpenAI's flagship GPT-5.6 model and highest-capability tier in the Sol, Terra, and Luna naming system. GPT-5.6 Sol is built for demanding reasoning, long-horizon coding, agentic workflows, and cybersecurity tasks, introducing max reasoning effort and ultra multi-agent mode. Generally available July 9, 2026 across ChatGPT, Codex, and the OpenAI API (model IDs gpt-5.6-sol and alias gpt-5.6). Supports text and image inputs, reasoning, tool use, code execution, prompt caching, and Batch API with a 1,050,000-token context window and 128K max output.