OpenAI
OpenAI's API serving the GPT-6 family (Astra, Sol, Luna) and older GPT-5.x models, with batch, caching and EU regional processing options.
Spanning $0.10 per million input tokens on GPT-6 Luna to $10.00 on GPT-6 Astra, the range covers bulk classification through frontier work, with a 1050K context on all GPT-6 models. Bills climb once prompts pass 272K tokens, where GPT-6 models charge roughly 2x input and 1.5x output. Unlike Anthropic, OpenAI offers regional processing in Europe, though endpoints for models released on or after 2026-03-05 carry a 10% uplift. The Batch API halves prices.
- Headquarters
- 馃嚭馃嚫 United States
- Parent jurisdiction
- 馃嚭馃嚫 United States
- EU self-serve plan
- Available; check eligible plans and regions
- GDPR DPA
- Yes
- Billing
- payg
- Open source
- No
- Website
- openai.com
- Source last checked
- 2026-10-06
- Pricing evidence
- Published rates
Pricing
Calculated from the listed vendor rates; exclusions still apply. How to read these estimates.
| Model | Input / 1M tokens | Output / 1M tokens | Cached / 1M tokens | Context | Details |
|---|---|---|---|---|---|
| GPT-6 Astra | $10 | $50 | $1 | 1050k | frontier |
| GPT-6.1 Sol | $2 | $10 | $0.1 | 1050k | frontier |
| GPT-6 Luna | $0.1 | $0.5 | $0.01 | 1050k | small |
| GPT-5.4 mini | $0.75 | $4.5 | $0.075 | 400k | small |
Standard-tier prices for prompts up to 272K tokens; above 272K input the GPT-6 models bill roughly 2x input and 1.5x output. Regional processing (data residency, incl. Europe) endpoints carry a 10% uplift for models released on or after 2026-03-05. Batch API halves prices.
Managed alternatives
At 500M input tokens / month, 50M output tokens / month. Adjust usage and requirements.
OpenAI 路 GPT-6 Luna: $900/yr estimated.
- Groq 路 gpt-oss-20b: $630/yr estimated 路 $270/yr bill differencePublished rates
No cheaper managed estimate matches your filters. Adjust your usage or compare with your actual contract bill.
The price difference leaves out migration costs, operating costs and any features you鈥檇 need to replace. We compare the selected model or the cheapest listed model in the chosen capability tier. Sharing a tier does not mean equal quality.
Self-hosted options
Operating cost is not estimated. These options are not counted as savings against managed services.
Want a European-owned provider? See European alternatives to OpenAI among european LLM APIs.
Found a wrong rate or plan restriction? Report a correction with a current source.