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GPT-5.6 Terra Pro

gpt-terra1.1M context128k max outputreleased Jul 9, 2026ReasoningTool calling

As of Oct 4, 2026, the cheapest GPT-5.6 Terra Pro API price is $2 per 1M input tokens (302.AI) and $12 per 1M output tokens (302.AI). GPT-5.6 Terra Pro is offered by 4 providers in the gpt-terra family, reasoning enabled.

Cheapest input
$2
302.AI
Cheapest output
$12
302.AI
Official
—
output per 1M tokens
Providers
4
offering this model
Spread
1.3×
max / min output

API pricing by provider

Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge. How prices are ranked.

GPT-5.6 Terra Pro API prices by provider in USD per 1M tokens, updated Oct 4, 2026
Provider1M input1M output1M cache read1M cache writeContext
302.AICheapest$2Cheapest$12——1.1M
NanoGPT$2$12$0.2$2.51.1M
OpenRouter†$2$12$0.2$2.51.1M
Venice AI†$2.5$15$0.25$3.1251.0M

GPT-5.6 Terra Pro pricing FAQ

What is the cheapest GPT-5.6 Terra Pro API?

As of Oct 4, 2026, 302.AI has the lowest GPT-5.6 Terra Pro output price at $12 per 1M tokens, and 302.AI has the lowest input price at $2 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.

How many providers offer GPT-5.6 Terra Pro?

4 providers list GPT-5.6 Terra Pro on Sovyron; 4 of them sell it at a metered per-token price.

Is GPT-5.6 Terra Pro free?

No provider in the Sovyron catalog lists a free tier for GPT-5.6 Terra Pro.

What is the context window of GPT-5.6 Terra Pro?

GPT-5.6 Terra Pro supports a 1.1M-token context window and up to 128k output tokens.