LLMversus
OpenAI

o1

Complete specs, pricing, and benchmark data for o1 by OpenAI. Last verified 2026-04-20.

JSON ModeFunctionsStreamingCode Exec
Pricing

Input / 1M tokens

$15.00

Output / 1M tokens

$60.00

Context & Output

Context Window

200K

Max Output

100,000

TTFT

500ms

Speed

20 tok/s

Benchmarks

Arena ELO

1310

Coding ELO

1310

Reasoning ELO

1330

HumanEval

96

MMLU

92

MATH

94

GPQA

92

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Price History (Input $/M tokens)

Strengths
  • +Best reasoning model
  • +Code execution
  • +Extended thinking
Limitations
  • -Very expensive
  • -Slow inference
  • -No streaming

Best For

ReasoningCodingMath

Compare o1 with...

vs Claude Opus 4vs Gemini 2.5 Provs o3vs DeepSeek R1vs Qwen 3 235B MoEvs Gemini Experimental 1206vs GPT-4.5vs DeepSeek R1 (Groq)vs Llama 4 Maverickvs DeepSeek R1 (Together)vs Grok 3vs Claude Sonnet 4
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