o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following....
Specifications
| Provider | OpenAI |
|---|---|
| Context window | 200,000 tokens (200K) |
| Input price | $2 / 1M tokens |
| Output price | $8 / 1M tokens |
| Input modalities | image, text, file |
| Output modalities | text |
| Model ID | openai/o3 |
Pricing is per 1M tokens, indicative pricing via OpenRouter (updated 2026-08-22); a provider's own list price may differ.
Frequently asked questions
How much does o3 cost?
Indicative pricing (via OpenRouter, updated 2026-08-22) is $2 per 1M input tokens and $8 per 1M output tokens. A provider's own list price may differ. On Vincony, o3 is available on credit-based pricing alongside 800+ other models.
What is o3's context window?
o3 supports a context window of up to 200,000 tokens (200K), which is how much text it can consider at once.
Who makes o3?
o3 is built by OpenAI. You can access it — and compare it against other providers' models — through Vincony's multi-model platform.
How do I use o3?
You can use o3 directly through OpenAI, or via Vincony, which aggregates 800+ models (including o3) into one interface with side-by-side comparison and credit-based pricing.