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Llama 3.1 405B vs o1-mini: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare Llama 3.1 405B and o1-mini across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureLlama 3.1 405Bo1-mini
ProviderMetaOpenAI
Input Price / 1M tokens$3.00$1.10
Output Price / 1M tokens$3.00$4.40
Context Window
128K
128K
Max Output Tokens
4,096
65,536
Arena ELO
1,240
1,270
Coding ELO
1,200
1,280
TTFT (ms)
150
150
Tokens/sec
100
100
MultimodalNoNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use Llama 3.1 405B

Llama 3.1 405B excels at general-purpose, reasoning, long-context tasks.

Strengths:

  • Largest open model
  • Excellent reasoning
  • High quality outputs

Best for:

general-purposereasoninglong-context
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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