LLMversus

Claude 3.5 Sonnet vs o1-mini: Pricing, Benchmarks & Verdict (2026)

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

⚡ Quick Answer

Compare Claude 3.5 Sonnet and o1-mini across pricing, benchmarks, and capabilities.

Updated: September 14, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureClaude 3.5 Sonneto1-mini
ProviderAnthropicOpenAI
Input Price / 1M tokens$3.00$1.10
Output Price / 1M tokens$15.00$4.40
Context Window
200K
128K
Max Output Tokens
8,192
65,536
Arena ELO
1,270
1,270
Coding ELO
1,300
1,280
TTFT (ms)
150
150
Tokens/sec
100
100
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use Claude 3.5 Sonnet

Claude 3.5 Sonnet excels at coding, general-purpose, multimodal tasks.

Strengths:

  • Best coding
  • Large context
  • Strong reasoning

Best for:

codinggeneral-purposemultimodal
When to Use o1-mini

o1-mini excels at reasoning, general-purpose tasks.

Strengths:

  • Good reasoning at lower cost
  • Extended thinking
  • Fast for reasoning model

Best for:

reasoninggeneral-purpose

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