OpenAI API pricing
GPT-6.1 Terra pricing
Input / 1M tokens
$1
Output / 1M tokens
$5
Cached input / 1M
$0.05
Prompts over 272,000 tokens cost $2 in and $7.50 out per million, for the whole request.
Source: OpenAI pricing, checked 1 Nov 2026. API name: gpt-6.1-terra.
Price your prompt on GPT-6.1 Terra
What a prompt costs on GPT-6.1 Terra
| Example | Tokens in / out | Cost | 1,000 a day, per month |
|---|---|---|---|
| A short question and answer | 50 / 300 | $0.0015 | $46.50 |
| A one-page document summarised | 700 / 400 | $0.0027 | $81.00 |
| A 300-line code file reviewed | 4,000 / 1,200 | $0.010 | $300.00 |
| A 50-page report summarised | 35,000 / 1,500 | $0.043 | $1,275 |
Token sizes are typical, not exact. Replies include any thinking the model does.
Other GPT models
GPT-6 AstraGPT-6.1 SolGPT-6 LunaGPT-5.5GPT-5.4 miniGPT-5 nano
FAQ
How much does GPT-6.1 Terra cost?
$1 per million input tokens and $5 per million output tokens on OpenAI's standard API tier, and $0.05 per million for cached input. Checked 1 Nov 2026.
What does one prompt cost on GPT-6.1 Terra?
A 1,000-token prompt with a typical medium-length reply costs about $0.0050. Paste your own prompt into the calculator for an exact figure.