o3
o3 by OpenAI. Official list price: $2 per 1M input and $8 per 1M output tokens.
Official price benchmark
USD per 1M tokens
- input
- $2.00
- output
- $8.00
- cache read
- $0.500
Your budget
Input:output ratio · Similar amounts of input and output
Purchasing power ranking
$100 · o3 · Balanced
Best price
Tokemart
−94%
providers
9
max −94%
Purchasing power ranking
The provider's published prices next to the vendor's official list.
| # | Provider | Input | Output | Cache | Uptime | Latency | Score | Tokens for budget | Save |
|---|---|---|---|---|---|---|---|---|---|
| — | Official price | $2.00 | $8.00 | $0.500 | — | — | — | 20.0M | 0% |
| 1 | Minimum top-up: $5· Nov 09, 2026 | $0.182 | $0.728 | $0.049 | 100.0% | 616 ms | 96 | 220M | −91% |
| 2 | Minimum top-up: ¥10· Nov 05, 2026 | $0.249 | $0.995 | $0.062 | 100.0% | 458 ms | 98 | 161M | −88% |
| 3 | Minimum top-up: $1· Nov 07, 2026 | $0.322 | $1.29 | $0.077 | 100.0% | 751 ms | 95 | 124M | −84% |
| 4 | Minimum top-up: ¥20· Nov 05, 2026 | $0.606 | $2.42 | $0.139 | 100.0% | 900 ms | 93 | 66.1M | −70% |
| 5 | Minimum top-up: $10· Nov 10, 2026 | $0.969 | $3.88 | $0.227 | 100.0% | 391 ms | 99 | 41.3M | −52% |
| 6 | Minimum top-up: $50· Nov 05, 2026 | $1.04 | $4.15 | $0.274 | 100.0% | 350 ms | 99 | 38.6M | −48% |
| 7 | Polza.aioperational · Nov 10, 2026 | $2.92 | $11.69 | $0.730 | 100.0% | 471 ms | 98 | 13.7M | -46% |
Some links on this site are partner links. They do not affect prices or ranking. Uptime and latency come from our own GET /models probes every 30 minutes, not a guarantee that the model is available.
Cost estimate
What one request and a month of traffic cost at the selected provider.
per request
$0
per month
$3.55
SwiftRoute · −91% · 1.20K / 500
Other models
Frequently asked questions
Answers are generated from the live quotes.
We collect o3 prices two ways: the official OpenAI list and quotes from providers our crawler checks daily. Providers in our catalogue sell o3 at $0.115 in / $0.460 out (94% below the official list). Everything is normalised to a blended cost at a chosen input:output ratio, so “o3 price per 1M tokens” means the same thing on every page.
What does the o3 API cost?
The official OpenAI list price is $2.00 per 1M input tokens and $8.00 per 1M output tokens. Cached input is $0.500 per 1M tokens, 4× cheaper than the regular input.
How much does 1 million tokens of o3 cost?
1M input tokens cost $2.00, 1M output tokens — $8.00. With a 1:1 input/output load a million tokens works out to about $5.00. Chatbots with long context push the blended price down; code generation pushes it up.
Where is the o3 API cheapest?
Our measurements show Tokemart as the cheapest: 94% below the official price (sample listing). Quotes from 9 providers refresh daily — see the table above.
What is the o3 context window?
The context window is 200K tokens. Some vendors raise the price above a context threshold — check the plan notes.
How do I check that a provider key works?
The free checker sends a GET request to your endpoint's model list and reports status and latency. The key is not stored server-side.