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OpenAI: o1

by OpenAI

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).

Avg Score

88.3%

18 answers

Avg Latency

24.1s

14 runs

Pricing

$15.00

input

/

$60.00

output

per 1M tokens

Context

200K

tokens

Alternatives

Models with similar or better quality but different tradeoffs

No alternatives found

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Other Models from OpenAI

Compare performance with other models from the same creator

ModelScoreLatencyCost/1M
OpenAI: o1-pro94.2%95.3s$375.00
OpenAI: GPT-5.1-Codex-Max93.5%25.2s$5.63
OpenAI: GPT-592.2%54.7s$5.63
OpenAI: GPT-5 Image90.9%49.2s$10.00
OpenAI: GPT-5.1 Chat90.6%6.1s$5.63
OpenAI: GPT-5.1-Codex90.6%16.6s$5.63
OpenAI: GPT-5.1-Codex-Mini90.6%12.6s$1.13
OpenAI: GPT-5.190.3%35.5s$5.63
OpenAI: o390.3%19.0s$5.00
OpenAI: gpt-oss-120b90.0%28.3s$0.11
OpenAI: o4 Mini Deep Research89.7%134.5s$5.00
OpenAI: GPT-5 Pro89.4%332.1s$67.50
OpenAI: GPT-5 Image Mini89.3%31.8s$2.25
OpenAI: GPT-4o Search Preview89.3%11.2s$6.25
OpenAI: GPT-4.189.2%21.8s$5.00
OpenAI: gpt-oss-safeguard-20b88.4%2.3s$0.19
OpenAI: GPT-5.287.8%20.7s$7.88
OpenAI: o3 Pro87.6%125.7s$50.00
OpenAI: GPT-5.2-Codex87.2%21.7s$7.88
OpenAI: GPT-5 Codex87.2%20.5s$5.63
OpenAI: GPT-5.2 Pro86.9%47.7s$94.50
OpenAI: o3 Deep Research86.5%362.7s$25.00
OpenAI: GPT-5.2 Chat86.4%9.5s$7.88
OpenAI: GPT-5 Chat86.2%6.8s$5.63
OpenAI: o4 Mini High86.1%26.8s$2.75
OpenAI: o3 Mini High86.1%13.8s$2.75
OpenAI: o4 Mini85.3%18.2s$2.75
OpenAI: o3 Mini85.3%16.0s$2.75
OpenAI: ChatGPT-4o82.9%7.4s$10.00
OpenAI: GPT-5 Mini82.5%24.7s$1.13
OpenAI: GPT-5 Nano77.1%34.2s$0.22
OpenAI: GPT-4o (2024-05-13)76.5%4.7s$10.00
OpenAI: GPT-4o76.1%5.8s$12.00
OpenAI: GPT-4o (2024-11-20)75.6%13.0s$6.25
OpenAI: GPT-4o73.8%12.5s$6.25
OpenAI: gpt-oss-20b72.8%13.3s$0.06
OpenAI: GPT-4.1 Mini71.9%13.2s$1.00
OpenAI: GPT-3.5 Turbo (older v0613)70.8%13.7s$1.50
OpenAI: GPT-4o-mini (2024-07-18)70.3%13.2s$0.38
OpenAI: GPT-4o (2024-08-06)70.0%9.5s$6.25
OpenAI: gpt-oss-120b69.6%29.0s$0.11
OpenAI: GPT-4o-mini67.4%11.5s$0.38
OpenAI: GPT-4o-mini Search Preview66.2%6.5s$0.38
OpenAI: GPT-4 Turbo (older v1106)64.7%18.1s$20.00
OpenAI: GPT-4 Turbo Preview62.6%15.8s$20.00
OpenAI: GPT-461.7%12.1s$45.00
OpenAI: GPT-4 Turbo61.5%26.5s$20.00
OpenAI: GPT-4 (older v0314)59.7%16.8s$45.00
OpenAI: GPT-4.1 Nano59.2%5.3s$0.25
OpenAI: GPT-3.5 Turbo 16k48.2%4.2s$3.50
OpenAI: GPT-3.5 Turbo42.9%4.0s$1.00
OpenAI: GPT-3.5 Turbo Instruct27.5%4.4s$1.75
OpenAI: GPT-4o Audio——$6.25
OpenAI: gpt-oss-120b——Free
OpenAI: gpt-oss-20b——Free
OpenAI: GPT Audio——$6.25
OpenAI: GPT Audio Mini——$1.50
OpenAI: Codex Mini——$3.75

Benchmark Performance

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Price vs Performance

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Current model (baseline)
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Y-axis shows score difference from shared benchmarks. X-axis uses log scale.

Score Over Time

Performance trends across all benchmark runs

Benchmark Activity

Number of benchmark runs over time

Quickstart

Get started with this model using OpenRouter

View on OpenRouter
import { OpenRouter } from "@openrouter/sdk";

const openrouter = new OpenRouter({
  apiKey: "<OPENROUTER_API_KEY>"
});

const completion = await openrouter.chat.completions.create({
  model: "openai/o1",
  messages: [
    {
      role: "user",
      content: "Hello!"
    }
  ]
});

console.log(completion.choices[0].message.content);

Get your API key at openrouter.ai/keys