OpenAI

GPT-5.6 Sol

Released 2026-07-09 · Knowledge up to 2026-02-16

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...

You send / 1M

$4.00

tokens in

It replies / 1M

$20.00

tokens out

Memory

1.05M

tokens it can read at once

Typical request

$0.015

1,000 words in, 400 out

Data privacy

No training or retention: Yes. At least one provider serves it with zero data retention.

ProviderYou send / 1MIt replies / 1MUptimePrivacy policy
Azure$4.00$20.0098%Read
Azure$4.40$22.00100%Read
Azure$4.40$22.00100%Read

Based on OpenRouter and Vercel AI Gateway data. Confirm terms with the provider before sending sensitive data.

What it can do

  • Reads: file, image, text
  • Writes: text
  • Reasoning: Yes
  • Tool calling: Yes
  • Longest reply: 128K tokens
  • Repeated text is billed at $0.400 per 1M (prompt caching)
  • Intelligence score: 47 / 100 (Artificial Analysis)

Similar models

Appears in

Estimate your monthly cost with GPT-5.6 Sol →