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Llama 3.1 405B (Fireworks) vs GPT-4o: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare Llama 3.1 405B (Fireworks) and GPT-4o across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureLlama 3.1 405B (Fireworks)GPT-4o
ProviderFireworks AIOpenAI
Input Price / 1M tokens$3.00$2.50
Output Price / 1M tokens$3.00$10.00
Context Window
131.072K
128K
Max Output Tokens
4,096
16,384
Arena ELO
1,240
1,260
Coding ELO
1,200
1,265
TTFT (ms)
150
230
Tokens/sec
100
95
MultimodalNoYes
JSON ModeYesYes
Function CallingYesYes
VisionNoYes
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 GPT-4o

GPT-4o excels at general-purpose, multimodal, function-calling tasks.

Strengths:

  • Fast response times
  • Strong multimodal capabilities
  • Code execution support

Best for:

general-purposemultimodalfunction-calling

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