o3-pro pricing & specs
OpenAI · released 2025-06-10 · ● verified 2026-10-11
input / 1M$20.00
output / 1M$80.00
context200K
max output100K
// price history ($/1M tokens)
// cheaper or similar alternatives
| model | in | out | ctx | vs o3-pro |
|---|---|---|---|---|
| Gemma 4 E2B IT | $0.04 | $0.08 | 131.1K | −99.9% |
| Qwen3.7 Flash | $0.03 | $0.13 | 1M | −99.8% |
| Qwen3.5 9B | $0.10 | $0.15 | 262.1K | −99.7% |
| Gemma 4 26B A4B IT | $0.07 | $0.34 | 262.1K | −99.6% |
| GPT-5 Nano | $0.05 | $0.40 | 400K | −99.6% |
// faq
How much does o3-pro cost?
o3-pro costs $20.00 per million input tokens and $80.00 per million output tokens. At 50M input and 10M output tokens per month that is about $1,800.
What is the context window of o3-pro?
200K tokens, with up to 100K output tokens per request.
What are cheaper alternatives to o3-pro?
Gemma 4 E2B IT ($0.04 in / $0.08 out), Qwen3.7 Flash ($0.03 in / $0.13 out), Qwen3.5 9B ($0.10 in / $0.15 out) offer the same input types and capabilities for less.
// spec sheet
- input / 1M
- $20.00
- output / 1M
- $80.00
- blended (3:1)
- $35.00
- context
- 200K
- max output
- 100K
- input types
- text · image
- reasoning
- yes
- tool calling
- yes
- structured output
- yes
- open weights
- no
- knowledge cutoff
- 2024-05
- price source
- OpenAI
// cost calculator
| model | in $/1M | out $/1M | = monthly |
|---|---|---|---|
| Gemma 4 E2B IT | $0.04 | $0.08 | $2.80 |
| Qwen3.7 Flash | $0.03 | $0.13 | $2.80 |
| Qwen3.5 9B | $0.10 | $0.15 | $6.50 |
| o3-pro | $20.00 | $80.00 | $1,800 |
Base-tier list prices. Long-context tiers, caching and batch discounts are not included.