Today's price · per 1M tokens
Input
$1.10
per 1M tokens
Output
$4.40
per 1M tokens
Blended
$1.93
blended $/1M — 3:1 weighted input:output
Cached input
$0.550
50% of input — prompt caching
Price receipt
No confirmed receipt. We hold dated captures of OpenAI's pricing page, but none of them tied o3-mini to the price above on that page, so we do not claim this number is sourced. This model is deprecated and shuts down — while it remains purchasable, confirm the current rate on the provider's page before relying on it.
Overview
Reasoning model with extended thinking. Still available for cost-conscious reasoning workloads.
Capabilities
struck through = not supportedBenchmark performance
accuracy % · higher is better- AA Intelligence Index: 11 (Artificial Analysis composite across reasoning, knowledge and coding evals)
- AA-Omniscience Index: -42.6 (−100–100)
- LMSYS Chatbot Arena: 1431.6 ELO (Human preference)
- Ranks #51 of 100 benchmarked models by average score
- Ranks #127 of 195 comparably-measured models by percentile score, across 10 independent measurements
- Ranks #147 of 195 comparably-tested models by normalized performance per dollar
- Strongest at AIME 2025 — 86.5%, #16 of 37
214 tokens/sec output 14s latency to first token (TTFT)
Source: Vellum LLM Leaderboard · updated · See full rankings →
Specifications
- Provider
- OpenAI
- Context window
- 200K tokens
- Modality
- text
- Parameters
- Proprietary
- Open source
- No — proprietary
- Released
- Status
- Deprecated ends
- Last updated
- Tags
Availability verified: — per OpenAI's own deprecation notice