O3 Pro
OpenAI • API Price Comparison
O3 Pro is a large language model by OpenAI with a 200K-token context window. Across the 1 API channels tracked here, input pricing ranges from $20.00 per 1M input tokens; the cheapest is OpenRouter at $20.00 per 1M input tokens. None of the tracked channels are directly reachable from mainland China without a proxy or VPN. Prices are collected daily from official provider pages and every tracked channel, then cross-checked by a data-accuracy audit.
Model performance benchmarks
Scores retain their original benchmark, version and metric. We do not combine them into a site-wide score; results from different versions are not directly comparable.
| Usage Level | Tokens/Month | OpenRouter |
|---|---|---|
| 🐣 Light | 0.1M in + 0.1M out | $6.00 |
| 📊 Medium | 1.0M in + 0.5M out | $60.00 |
| 🚀 Heavy | 10.0M in + 5.0M out | $600.00 |
| 🏢 Enterprise | 100.0M in + 50.0M out | $6,000.00 |
Frequently asked questions about o3-pro
What is the cheapest API provider for O3 Pro?
Of the channels tracked here, OpenRouter is the cheapest at $20.00 per 1M input tokens and $80.00 per 1M output tokens (about $20.00 per 1M input). Confirm on the provider's page; figures are updated daily.
Can I use O3 Pro from mainland China?
None of the tracked channels are directly reachable from mainland China; reaching the official or international channels normally requires a proxy or VPN.
What is the context window of O3 Pro?
O3 Pro offers a 200,000-token context window.
How often are O3 Pro prices updated, and how reliable is the data?
Prices are scraped daily from official pricing pages and every tracked channel, with every significant change recorded in a price-history log. A daily read-only data audit cross-checks each channel against the model producer's published price and flags stale or inconsistent rows for correction.