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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
Where to run OpenAI: o3 Pro
AI/ML API: one API key for 400+ models, including most models tracked here · Novita AI: pay-as-you-go APIs for open models (DeepSeek, Qwen, Llama and more) plus GPU cloud. Prices there follow each platform's own catalog and can differ from the list prices tracked here.
Run it on AI/ML API →Run it on Novita AI →
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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 22, 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. 21 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 22, 2026, refreshed daily. How we collect prices