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GPT-5.6 Terra API Pricing — $2.00/M input, $12.00/M output

GPT-5.6 model that balances intelligence and cost — ideal for everyday production workloads.

Input
$2.00/M
Output
$12.00/M
Blended
$4.50/M
Provider
Verified 2026-07-30source

Speed

Tokens / sec
78
TTFT
380 ms
Rank
#20 of 31
$ / M ÷ t/s
$0.06
Measured with 5 runs on a fixed prompt — see the full methodology.

Cost at scale

Tokens / monthEst. cost (blended 3:1)
100,000$0.45
1,000,000$4.50
10,000,000$45.00
100,000,000$450.00

How GPT-5.6 Terra compares

GPT-5 Nano$0.14/MGPT-4o Mini$0.26/MGPT-5.6 Luna$0.45/MGPT-5.4 Nano$0.46/MGPT-5 Mini$0.69/MGemini 3.1 Pro$4.50/MGPT-4o$4.38/MGPT-4.1$3.50/M
See all OpenAI models →

Head-to-head comparisons

GPT-5.6 Terra vs Claude Opus 4.8GPT-5.6 Terra vs Grok 4.3GPT-5.6 Terra vs Gemini 3.1 ProGPT-5.6 Terra vs GPT-4 Turbo

FAQ

Is GPT-5.6 Terra cheaper than Gemini 3.1 Pro?

GPT-5.6 Terra costs $4.50/M blended tokens, Gemini 3.1 Pro costs $4.50/M — Gemini 3.1 Pro is cheaper.

How much does 1 million tokens cost with GPT-5.6 Terra?

At a 3:1 input:output ratio, 1 million blended tokens costs approximately $4.50. Pure input costs $2.00/M; pure output costs $12.00/M.

Who provides GPT-5.6 Terra?

GPT-5.6 Terra is served by OpenAI. Pricing was last verified on 2026-07-30 against https://openai.com/api/pricing.

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