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Claude Opus 4 vs o3: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare Claude Opus 4 and o3 across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureClaude Opus 4o3
ProviderAnthropicOpenAI
Input Price / 1M tokens$5.00$10.00
Output Price / 1M tokens$25.00$40.00
Context Window
200K
200K
Max Output Tokens
32,000
100,000
Arena ELO
1,504
1,340
Coding ELO
1,504
1,320
TTFT (ms)
500
600
Tokens/sec
50
15
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionYesNo
When to Use Claude Opus 4

Claude Opus 4 excels at coding, analysis, agents, complex-reasoning tasks.

Strengths:

  • Top-tier coding and reasoning
  • Excellent agentic capabilities
  • Strong instruction following
  • 200K context window

Best for:

codinganalysisagentscomplex-reasoning
When to Use o3

o3 excels at reasoning, coding, math tasks.

Strengths:

  • Highest reasoning capability
  • Best math performance
  • Code execution

Best for:

reasoningcodingmath

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