OpenAI

GPT-5.6 Terra

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

GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...

You send / 1M

$2.00

tokens in

It replies / 1M

$12.00

tokens out

Memory

1.05M

tokens it can read at once

Typical request

$0.0086

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$2.00$12.0099%Read
Azure$2.20$13.20n/aRead
Azure$2.20$13.20100%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 $0.200 per 1M (prompt caching)
  • Intelligence score: 42.1 / 100 (Artificial Analysis)

Similar models

Appears in

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