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OpenAI: o3 Pro API Pricing
The o-series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o3-pro model uses more compute to think harder and provide consistently...
How much does OpenAI: o3 Pro cost for a real workload?
At 10M input + 2M output tokens per month, OpenAI: o3 Pro costs about $360 ($200 input + $160 output). Try your own volumes in the cost calculator.
What is the official OpenAI: o3 Pro price?
| Official (openai) | Catalog (OpenRouter) | |
|---|---|---|
| Input /1M | $20 | $20 |
| Output /1M | $80 | $80 |
| Cached input /1M | — | — |
✓ Matches the official list price. Source: openai official pricing page, checked 2026-10-21.
What are cheaper alternatives to OpenAI: o3 Pro?
- OpenAI: GPT-5.2 Pro (batch) — $10.5 in / $84 out per 1M
- Anthropic: Claude Opus 4.1 — $15 in / $75 out per 1M
- OpenAI: GPT-4 — $30 in / $60 out per 1M
- OpenAI: o1 — $15 in / $60 out per 1M
- OpenAI: GPT-5 Pro (batch) — $7.5 in / $60 out per 1M
- OpenAI: GPT Astra Latest — $10 in / $50 out per 1M
Compare OpenAI: o3 Pro with other models
OpenAI: o3 Pro vs OpenAI: gpt-oss-20bOpenAI: o3 Pro vs OpenAI: gpt-oss-20b (batch)OpenAI: o3 Pro vs OpenAI: gpt-oss-120b (batch)OpenAI: o3 Pro vs OpenAI: GPT-5 Nano (batch)OpenAI: o3 Pro vs OpenAI: GPT-4.1 Nano (batch)OpenAI: o3 Pro vs OpenAI: GPT-6 Luna Pro (batch)
Frequently asked questions
How much does OpenAI: o3 Pro cost?
OpenAI: o3 Pro costs $20 per 1M input tokens and $80 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $360.
What is the context window of OpenAI: o3 Pro?
OpenAI: o3 Pro has a context window of 200,000 tokens and can return up to 100,000 output tokens per response.
What are cheaper alternatives to OpenAI: o3 Pro?
Cheaper models include OpenAI: GPT-5.2 Pro (batch) ($10.5 in / $84 out), Anthropic: Claude Opus 4.1 ($15 in / $75 out), OpenAI: GPT-4 ($30 in / $60 out). See the full list on this page.
Is OpenAI: o3 Pro free to use?
No. OpenAI: o3 Pro is a paid model at $20 input / $80 output per 1M tokens. 20 free models are listed on the free models page.
What is the official price of OpenAI: o3 Pro?
On openai's official pricing page (checked 2026-10-21), OpenAI: o3 Pro is listed at $20 per 1M input tokens and $80 per 1M output tokens. The catalog price tracked on this page matches it exactly.
Provider: openai · Model ID: openai/o3-pro · Modality: text+image+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices