GPT 6.1 Sol - Unifically

GPT 6.1 Sol is OpenAI’s upgrade to GPT 6 Sol, released on September 29, 2026. It comes close to GPT 6 Astra on agentic coding, computer use, and professional work. It accepts text and image input, returns text, has a context window of about 1 million tokens with up to 128,000 output tokens, and supports reasoning_effort from low to max.

Model

openai/gpt-6.1-sol


Provider	OpenAI
Name	GPT 6.1 Sol

Supported Endpoints

All three API formats are supported:

Chat Completions — POST /v1/chat/completions
Responses — POST /v1/responses
Messages — POST /v1/messages

Example

curl -X POST https://api.unifically.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "openai/gpt-6.1-sol",
    "messages": [
      {"role": "user", "content": "Review this pull request and list any bugs you find."}
    ]
  }'

Volume discounts are available for almost all models. Reach out at contact@unifically.com to discuss custom pricing.