Ways to buy 1
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
 OpenAI APIThe lab's own API · cached $7.5 | $15 | $60 | $15 / $60List price | $7.5 | List price |
USD per 1M tokens. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $2,700 direct.
Helicone$2,700+0%
Kong AI Gateway$2,700+0%
LiteLLM$2,700+0%
Vercel AI Gateway$2,700+0%
Cloudflare AI Gateway$2,835+5%
Requesty$2,835+5%
Eden AI$2,849+5.5%
OpenRouter$2,849+5.5%
No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | ||||||
|---|---|---|---|---|---|---|---|
| GPT-6 Luna OpenAI · 1.05MCheapest: $0.1 on OpenAI (flex) | $0.1 | $0.5 | $0.1 / $0.5 | $0.2 | 1.05M | $0.1 on OpenAI (flex) | · |
| GPT-6 Luna Pro OpenAI · 1.05MCheapest: $0.1 on OpenAI (flex) | $0.1 | $0.5 | $0.1 / $0.5 | $0.2 | 1.05M | $0.1 on OpenAI (flex) | · |
| GPT-6 Sol OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · |
| GPT-6 Sol Pro OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · |
 Claude Fable 5.1Anthropic · 1M | $10 | $50 | $10 / $50 | $20 | 1M | Lab list price | · |
| Claude Fable 5 Anthropic · 1M | $10 | $50 | $10 / $50 | $20 | 1M | Lab list price | · |
| Claude Opus 4.1 Anthropic · 200K | $15 | $75 | $15 / $75 | $30 | 200K | Lab list price | · |
About o1
The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding.
Takes text, image, files in and returns text. First listed Dec 19, 2024. Up to 100K output tokens. Blended price $26.3 per 1M tokens at 3 input to 1 output. Model id o1.
Price history
List price since Dec 19, 2024, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.
| Seen | Model | Old price | New price | Change |
|---|---|---|---|---|
| Apr 10, 2025 | o1Cached input Free to $7.5 | Cached input Free | Cached input $7.5 |
Questions
How much does o1 cost?
$15 per million input tokens and $60 per million output tokens, with cached input at $7.5.
What is the context window of o1?
200K tokens, with up to 100K tokens of output.
Sources: OpenRouter's public model catalog and each provider's own pricing page, read every morning at 05:00 UTC; gateway fees re-read every Monday. List prices: your contract may differ. Logos via logo.dev; trademarks belong to their owners.