OpenAI: o1

OpenAI

OpenAI: o1 by OpenAI costs $15.00 per 1M input tokens and $60.00 per 1M output tokens, with a 200K-token context window.

Pricing

Input (per 1M tokens)

$15.00

Output (per 1M tokens)

$60.00

Cached input (per 1M)

$7.50

Provider	Input / 1M	Output / 1M
openrouter	$15.00	$60.00
OpenAI	$15.00	$60.00

Specifications

Provider: OpenAI
Context window: 200K tokens
Parameters: —
Released: Dec 2024
Open weights: No
Frontier model: No

Benchmarks

Epoch Capabilities Index: 141.9
FrontierMath: 9.3
GPQA Diamond: 76.8
LMArena (Chatbot Arena) Elo: 1365.8
LMArena Vision Elo: 1168.4

Speed & latency

Time to first token

1.21s

Output speed

146 tok/s

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

Compare OpenAI: o1 with…

OpenAI: o1 vs OpenAI: GPT-5.6 Sol Pro$10.00/1M OpenAI: o1 vs OpenAI: GPT-6.1 Sol Pro$10.00/1M OpenAI: o1 vs OpenAI: GPT-6.1 Sol Pro (batch)$5.00/1M OpenAI: o1 vs OpenAI: GPT-6.1 Sol$10.00/1M OpenAI: o1 vs OpenAI: GPT-6.1 Sol (batch)$5.00/1M OpenAI: o1 vs OpenAI: GPT-6 Luna Pro$0.50/1M

FAQ

How much does OpenAI: o1 cost?

OpenAI: o1 is priced at $15.00 per 1M input tokens and $60.00 per 1M output tokens. Output tokens cost more than input.

What is OpenAI: o1's context window?

OpenAI: o1 supports a context window of 200K tokens — the maximum prompt plus response length it can handle in a single request.

Is OpenAI: o1 open weight?

No — OpenAI: o1 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.