OpenAI

o3-mini

CTX200K

Retired

58Quality

Reasoning · Tools

Input$1.10/M

Output$4.40/M

Smaller o-series reasoner for economical coding, math, and planning tasks

PaidProprietary461/1044

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OpenAITextUncommonRetired

o3-mini

Smaller o-series reasoner for economical coding, math, and planning tasks

o3-mini

Type: Text
Quality: 58 · Top 42% on the Epoch Capabilities Index
Context window: 200,000 tokens
Max output: 100,000 tokens
Input price: $1.10 / 1M tokens
Output price: $4.40 / 1M tokens
Cache read: $0.55 / 1M tokens
Cache write: —
Released: Dec 20, 2024
Knowledge cutoff: May 2024
Takes in: Text
Puts out: Text
Reasoning: Yes
Tool calling: Yes
Structured output: Yes
File attachments: No
Access: Paid
License: Proprietary
Rarity: Uncommon
Set number: 461/1044

Open OpenAI docs Quality 58 Where to run it 20 Evolution 1/2 Meet its creature Battle GLM-5.3

Weights aren’t public. Use is governed by OpenAI’s terms. Specs from models.dev, last changed Oct 19, 2026. Official source: platform.openai.com.

How good is it?

Public leaderboard scores for o3-mini, refreshed daily from Epoch AI and LMArena.

Top 42% of the 277 models on the Epoch Capabilities Index: #117.

Quality is the share of a leaderboard’s models this one beats, from 0 to 100. Chat models are rated on Epoch AI’s Capabilities Index when it lists them, otherwise on LMArena; image and video models on LMArena’s image and video arenas.

Leaderboards

Epoch Capabilities Index#117 of 277
One number fitted from dozens of hard benchmarks, from science questions to agentic coding.140.3 index
LMArena Text#219 of 416
People compare two anonymous answers and vote for the better one.1,337 rating
Listed as o3-mini-high
LMArena Text · Coding#197 of 411
The text arena’s coding prompts only.1,378 rating
Listed as o3-mini-high
LMArena Text · Math#166 of 400
The text arena’s math prompts only.1,396 rating
Listed as o3-mini-high
LMArena Text · Creative writing#235 of 414
The text arena’s creative writing prompts only.1,286 rating
Listed as o3-mini-high

Benchmarks Epoch AI runs

Scores from Epoch AI and LMArena, licensed CC BY 4.0. Boards list models under their own names, so a close match is shown with the name it was scored under. Credits

Where to run it

20 providers sell o3-mini through an API. Prices are per million tokens, cheapest first.

CheapestPoe$0.99 in · $4.00 out
From the labOpenAI$1.10 in · $4.40 out

API providers

Provider	Input	Output	Context
PoeCheapest paid`openai/o3-mini`	$0.99	$4.00	200K
Abacus`o3-mini`	$1.10	$4.40	200K
Azure`o3-mini`	$1.10	$4.40	200K
Azure Cognitive Services`o3-mini`	$1.10	$4.40	200K
Cloudflare AI Gateway`openai/o3-mini`	$1.10	$4.40	200K
DevPass (LLM Gateway)`o3-mini`	$1.10	$4.40	200K
Eden AI`openai/o3-mini`	$1.10	$4.40	200K
Helicone`o3-mini`	$1.10	$4.40	200K
Impossibl`openai/o3-mini`	$1.10	$4.40	200K
Jiekou.AI`o3-mini`	$1.10	$4.40	131K

Show 10 more providers

Provider	Input	Output	Context
Kilo Gateway`openai/o3-mini`	$1.10	$4.40	200K
LLM Gateway`openai/o3-mini`	$1.10	$4.40	200K
Merge Gateway`openai/o3-mini`	$1.10	$4.40	200K
NanoGPT`openai/o3-mini`	$1.10	$4.40	200K
NEAR AI Cloud`openai/o3-mini`	$1.10	$4.40	200K
OpenAIOfficial`o3-mini`	$1.10	$4.40	200K
OpenRouter`openai/o3-mini`	$1.10	$4.40	200K
Vercel AI Gateway`openai/o3-mini`	$1.10	$4.40	200K
AI/ML API`openai/o3-mini`	$1.43	$5.72	200K
AnyAPI`openai/o3-mini`	—	—	200K

From models.dev and Hugging Face, checked daily. Resellers’ listings can lag behind their price pages, so confirm with the provider before you commit.

Face off

Current text models from other labs at a similar output price.

o3-mini

o3-mini

How good is it?

Leaderboards

Benchmarks Epoch AI runs

Where to run it

API providers

Face off

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