GPT-5.6 Terra
Last verified August 9, 2026 · OpenAI pricing ↗$2.00/1M input · $12.00/1M output · 1.1M context · OpenAI
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Pricing Details
OpenAIBalanced production tier of the GPT-5.6 family. Price cut 20% on 2026-07-30 from $2.50/$15.00; every line fell by exactly 1.25x. Now 2.5x cheaper than Sol on tokens but only 2.14x cheaper per finished task. Matches Gemini 3.1 Pro's $2/$12 card to the cent. Cached input: $0.20/1M. Batch and Flex: $1.00/$6.00. Fast mode: $4.00 input / $0.40 cached / $24.00 output, a flat 2x, with a 99.9% uptime SLA and 99% of requests above 70 output tok/s. Above 272K input tokens the whole request bills at 2x input / 1.5x output ($4.00/$18.00). CHANGED 2026-08-05: Fast mode now accepts long-context prompts, and the pricing page publishes Fast long context at $8.00 input / $0.80 cached / $36.00 output. Batch/Flex long context: $2.00/$9.00. Artificial Analysis (max reasoning effort): Intelligence Index 55, 96M output tokens and $1,607.93 to run the index, 131.8 tok/s, 143.74s TTFT. Rates confirmed on OpenAI's own pricing page (verified 2026-07-31).
Input / 1M tokens
$2
Output / 1M tokens
$12
Context Window
1.1M
Max Output
128K
Price History
No price change recorded since 2026-08-09, when this site started tracking this model; it launched on 2026-06-26.
Frequently Asked Questions
Common questions about GPT-5.6 Terra pricing and usage