---
id: "openai/gpt-6.1-sol"
also: ["openai/gpt-6.1-sol-20260929", "requesty/openai/gpt-6.1-sol", "vercel/openai/gpt-6.1-sol"]
card_usd_per_m: "2.0 in, 10.0 out, at openai"
cheapest_list_usd_per_m: "1.0 in, 5.0 out, at openai/flex on openrouter"
cheapest_effective_usd_per_m: "0.111 in, 5.0336 out, at openai/flex on openrouter"
context: 1050000
max_output: 128000
input: ["file", "image", "text"]
output: ["text"]
released: "2026-09-29"
reasoning: ["max", "xhigh", "high", "medium", "low"]
api: ["/api/v1/chat/completions", "/api/v1/completions", "/api/v1/messages", "/api/v1/responses"]
params: ["include_reasoning", "max_completion_tokens", "max_tokens", "reasoning", "reasoning_effort", "response_format", "seed", "stop", "structured_outputs", "temperature", "tool_choice", "tools", "verbosity"]
endpoints: 19
gateways: "openrouter (9), requesty (7), vercel (3)"
no_training: 19
trains: 0
retains_prompts: 8
intelligence: 54.6000
---
# OpenAI: GPT-6.1 Sol

GPT-6.1 Sol is OpenAI's reasoning model for complex coding, computer use, and professional work. It accepts text and images, generates text, and supports a 1,050,000-token context window with up to 128,000 output tokens. Configurable reasoning effort, structured outputs, prompt caching, and Responses API tools support multi-step workflows.