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o3 vs Llama 3.1 405B (Together): Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare o3 and Llama 3.1 405B (Together) across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

Featureo3Llama 3.1 405B (Together)
ProviderOpenAITogether AI
Input Price / 1M tokens$10.00$3.50
Output Price / 1M tokens$40.00$3.50
Context Window
200K
4K
Max Output Tokens
100,000
4,096
Arena ELO
1,340
1,240
Coding ELO
1,320
1,200
TTFT (ms)
600
150
Tokens/sec
15
100
MultimodalNoNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use o3

o3 excels at reasoning, coding, math tasks.

Strengths:

  • Highest reasoning capability
  • Best math performance
  • Code execution

Best for:

reasoningcodingmath
When to Use Llama 3.1 405B (Together)

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

Strengths:

  • Largest model
  • High quality
  • Good pricing

Best for:

general-purposereasoning

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