OpenAI: o4 Mini

OpenAI

OpenAI: o4 Mini by OpenAI costs $1.10 per 1M input tokens and $4.40 per 1M output tokens, with a 200K-token context window.

Pricing

Input (per 1M tokens)

$1.10

Output (per 1M tokens)

$4.40

Cached input (per 1M)

$0.28

Provider	Input / 1M	Output / 1M
openrouter	$1.10	$4.40
OpenAI	$1.10	$4.40

Specifications

Provider: OpenAI
Context window: 200K tokens
Parameters: —
Released: Apr 2025
Open weights: No
Frontier model: No

Benchmarks

Epoch Capabilities Index: 145.6
FrontierMath: 24.8
GPQA Diamond: 79.6
LMArena (Chatbot Arena) Elo: 1353.2
LMArena Vision Elo: 1194.0
SWE-bench Multimodal: 33.9
SWE-bench Verified: 64.6

Speed & latency

Time to first token

1.88s

Output speed

189 tok/s

Fastest host: openai (via vercel-ai-gateway).

Compare OpenAI: o4 Mini with…

OpenAI: o4 Mini vs OpenAI: GPT-5.6 Sol Pro$10.00/1M OpenAI: o4 Mini vs OpenAI: GPT-6.1 Sol Pro$10.00/1M OpenAI: o4 Mini vs OpenAI: GPT-6.1 Sol Pro (batch)$5.00/1M OpenAI: o4 Mini vs OpenAI: GPT-6.1 Sol$10.00/1M OpenAI: o4 Mini vs OpenAI: GPT-6.1 Sol (batch)$5.00/1M OpenAI: o4 Mini vs OpenAI: GPT-6 Luna Pro$0.50/1M

FAQ

How much does OpenAI: o4 Mini cost?

OpenAI: o4 Mini is priced at $1.10 per 1M input tokens and $4.40 per 1M output tokens. Output tokens cost more than input.

What is OpenAI: o4 Mini's context window?

OpenAI: o4 Mini supports a context window of 200K tokens — the maximum prompt plus response length it can handle in a single request.

Is OpenAI: o4 Mini open weight?

No — OpenAI: o4 Mini is a closed/proprietary model accessed via API.

Data as of 2026-10-14. Source: Pricing via OpenRouter API, openrouter.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.