LLMversus

Llama 3.1 405B (Fireworks) vs o3-mini: Pricing, Benchmarks & Verdict (2026)

Pricing verified Aug 10, 2026By LLMversusUpdated August 11, 2026View methodology

⚡ Quick Answer

Compare Llama 3.1 405B (Fireworks) and o3-mini across pricing, benchmarks, and capabilities.

Updated: August 10, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureLlama 3.1 405B (Fireworks)o3-mini
ProviderFireworks AIOpenAI
Input Price / 1M tokens$3.00$1.10
Output Price / 1M tokens$3.00$4.40
Context Window
131.072K
128K
Max Output Tokens
4,096
65,536
Arena ELO
1,240
1,348
Coding ELO
1,200
1,348
TTFT (ms)
150
350
Tokens/sec
100
25
MultimodalNoNo
JSON ModeYesYes
Function CallingYesNo
VisionNoNo
When to Use Llama 3.1 405B (Fireworks)

Llama 3.1 405B (Fireworks) excels at general-purpose, reasoning tasks.

Strengths:

  • Largest model
  • High quality
  • Large context

Best for:

general-purposereasoning
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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