o3
As of Oct 4, 2026, the cheapest o3 API price is $1.8 per 1M input tokens (Poe) and $7.2 per 1M output tokens (Poe). o3 is offered by 22 providers in the o family, reasoning enabled. OpenAI's own rate is $8 per 1M output tokens.
API pricing by provider
Metered per-token prices. Cheapest input and output are highlighted; † marks a context-tier surcharge. How prices are ranked.
| Provider | 1M input | 1M output | 1M cache read | 1M cache write | Context |
|---|---|---|---|---|---|
| Poe | Cheapest$1.8 | Cheapest$7.2 | $0.45 | — | 200k |
| 302.AI | $2 | $8 | — | — | 200k |
| Abacus | $2 | $8 | $0.5 | — | 200k |
| AIHubMix | $2 | $8 | $0.5 | — | 200k |
| Azure | $2 | $8 | $0.5 | — | 200k |
| Azure Cognitive Services | $2 | $8 | $0.5 | — | 200k |
| Cloudflare AI Gateway | $2 | $8 | $0.5 | — | 200k |
| DigitalOcean | $2 | $8 | $0.5 | — | 200k |
| Eden AI | $2 | $8 | $0.5 | — | 200k |
| Helicone | $2 | $8 | $0.5 | — | 200k |
| Impossibl | $2 | $8 | $0.5 | — | 200k |
| Kilo Gateway | $2 | $8 | $0.5 | — | 200k |
| DevPass (LLM Gateway) | $2 | $8 | $0.5 | — | 200k |
| LLM Gateway | $2 | $8 | $0.5 | — | 200k |
| Merge Gateway | $2 | $8 | $0.5 | — | 200k |
| NanoGPT | $2 | $8 | $1 | — | 200k |
| NEAR AI Cloud | $2 | $8 | $0.5 | — | 200k |
| OpenAI | $2 | $8 | $0.5 | — | 200k |
| OpenRouter | $2 | $8 | $0.5 | — | 200k |
| Vercel AI Gateway | $2 | $8 | $0.5 | — | 200k |
| Jiekou.AI | $10 | $40 | — | — | 131k |
o3 pricing FAQ
What is the cheapest o3 API?
As of Oct 4, 2026, Poe has the lowest o3 output price at $7.2 per 1M tokens, and Poe has the lowest input price at $1.8 per 1M tokens. Prices are metered per-token rates in USD; free tiers and subscription plans are excluded.
How much does o3 cost on OpenAI?
OpenAI charges $2 per 1M input tokens and $8 per 1M output tokens for o3.
How many providers offer o3?
22 providers list o3 on Sovyron; 21 of them sell it at a metered per-token price.
Is o3 free?
No provider in the Sovyron catalog lists a free tier for o3.
What is the context window of o3?
o3 supports a 200k-token context window and up to 131k output tokens.