LLMversus

o3 vs o3-mini: Pricing, Benchmarks & Verdict (2026)

Pricing verified Sep 14, 2026By LLMversusUpdated September 17, 2026View methodology

⚡ Quick Answer

Compare o3 and o3-mini across pricing, benchmarks, and capabilities.

Updated: September 14, 2026 · ✓ Pricing verified

Side-by-Side Comparison

Featureo3o3-mini
ProviderOpenAIOpenAI
Input Price / 1M tokens$2.00$1.10
Output Price / 1M tokens$8.00$4.40
Context Window
200K
128K
Max Output Tokens
100,000
65,536
Arena ELO
1,340
1,348
Coding ELO
1,320
1,348
TTFT (ms)
600
350
Tokens/sec
15
25
MultimodalNoNo
JSON ModeYesYes
Function CallingYesNo
VisionNoNo
When to Use o3

o3 excels at reasoning, coding, math tasks.

Strengths:

  • Highest reasoning capability
  • Best math performance
  • Code execution

Best for:

reasoningcodingmath
When to Use o3-mini

o3-mini excels at reasoning, math, general-purpose tasks.

Strengths:

  • Strong reasoning
  • Good math skills
  • Affordable reasoning

Best for:

reasoningmathgeneral-purpose

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