GPT-5.6 Terra pricing and token costs
GPT-5.6 Terra is a OpenAI model with a 1,050,000-token context window. Rates below are per million tokens, and are the ones in effect today.
Pricing
- Input, per 1M tokens
- $2.00
- Output, per 1M tokens
- $12.00
- Context window
- 1,050,000 tokens
- Tokenizer
- o200k_base
Input and output combined.
Counted exactly, in your browser.
Long-context tier. Above 272,000 input tokens, the whole request bills at $4.00 input and $18.00 output per million — not only the tokens above the threshold. Ignoring this understates a large paste by the full multiplier.
Alternatives
Articles that quote these figures
Common questions
- How much does GPT-5.6 Terra cost per million tokens?
- $2.00 per million input tokens and $12.00 per million output tokens.
- What is the context window of GPT-5.6 Terra?
- 1,050,000 tokens, covering input and output combined.
- Which tokenizer does GPT-5.6 Terra use?
- GPT-5.6 Terra uses the o200k_base encoding. Counts are computed in your browser with the same tokenizer OpenAI publishes, so they are exact.
- Does GPT-5.6 Terra charge more for long prompts?
- Yes. Above 272,000 input tokens the entire request bills at $4.00 per million input and $18.00 per million output — not just the tokens above the threshold.
Figures come from OpenAI’s published list prices and are checked against every article on this site that quotes them at build time. They are still estimates of what a request costs — verify against your own billing before committing to them.