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Llama 3.1 405B (Fireworks) vs Grok 3: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare Llama 3.1 405B (Fireworks) and Grok 3 across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureLlama 3.1 405B (Fireworks)Grok 3
ProviderFireworks AIxAI
Input Price / 1M tokens$3.00$2.50
Output Price / 1M tokens$3.00$12.50
Context Window
131.072K
200K
Max Output Tokens
4,096
8,192
Arena ELO
1,240
1,285
Coding ELO
1,200
1,280
TTFT (ms)
150
200
Tokens/sec
100
90
MultimodalNoNo
JSON ModeYesYes
Function CallingYesYes
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 Grok 3

Grok 3 excels at general-purpose, coding, reasoning tasks.

Strengths:

  • Latest xAI model
  • Strong reasoning
  • Large context

Best for:

general-purposecodingreasoning

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