o1
OPENAI Developer Architecture Profile
Intelligence (ELO)1300Chatbot Arena Verified
Max Context200,000Tokens
API Cost / 1M$75.00Blended Prompt + Completion
Model Capabilities
- Coding & Logic
- Reasoning
- Agentic
- Fictional
The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason using chain of thought.
The o1 models are optimized for math, science, programming, and other STEM-related tasks. They consistently exhibit PhD-level accuracy on benchmarks in physics, chemistry, and biology. Learn more in the [launch announcement](https://openai.com/o1).
Granular Pricing Matrix
Input Tokens (Prompt)$15.00 / 1M
Output Tokens (Completion)$60.00 / 1M
Pricing data via OpenRouter. Sync: 3/16/2026
Evaluate Competitors
VS Engine Matchupo1 vs Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)VS Engine Matchupo1 vs Google: Gemini 3.1 Pro Preview Custom ToolsVS Engine Matchupo1 vs OpenAI: GPT-5.2-CodexVS Engine Matchupo1 vs Google: Gemini 3 Flash PreviewVS Engine Matchupo1 vs OpenAI: GPT-5.2 ProVS Engine Matchupo1 vs OpenAI: GPT-5.2