GPT-5.6 Sol API: Pricing and Specs

GPT-5.6 Sol API

GPT-5.6 Sol is a large language model by OpenAI, available on the Venice API as openai-gpt-56-sol. Requests are anonymized, so the provider never sees your identity.GPT-5.6 Sol is the flagship model in OpenAI’s GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks and long-horizon problem solving.

GPT-5.6 Sol API pricing

Model ID	Variant	Privacy	Price
`openai-gpt-56-sol`	Standard	Anonymized	$4.00 / $20.00 per 1M

GPT-5.6 Sol specifications

Spec	Value
Provider	OpenAI
Released	Jul 9, 2026
Privacy	Anonymized
Status	Stable
Context window	1M tokens
Max output	128K tokens
Reasoning effort	none, low, medium, high, xhigh, max

How to use the GPT-5.6 Sol API

Send requests to POST https://api.venice.ai/api/v1/responses with "model": "openai-gpt-56-sol" and your API key.

curl https://api.venice.ai/api/v1/responses \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai-gpt-56-sol",
    "input": "Explain TEE attestation in two sentences.",
    "reasoning": { "effort": "high" }
  }'

Related models

GPT-6.1 Sol API: $2.00 / $10.00 per 1M
GPT-6 Sol API: $2.00 / $10.00 per 1M
Kimi K3 API: $3.75 / $18.75 per 1M
Claude Opus 5.5 API: $4.00 / $20.00 per 1M
Claude Opus 5 API: $5.00 / $25.00 per 1M
Claude Opus 4.8 API: $5.00 / $25.00 per 1M

Explore

By modality

GPT-5.6 Sol API