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

Pricing verified Apr 8, 2026

⚡ Quick Answer

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

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureClaude Haiku 4o3
ProviderAnthropicOpenAI
Input Price / 1M tokens$1.00$10.00
Output Price / 1M tokens$5.00$40.00
Context Window
200K
200K
Max Output Tokens
8,192
100,000
Arena ELO
1,220
1,340
Coding ELO
1,195
1,320
TTFT (ms)
150
600
Tokens/sec
130
15
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionYesNo
When to Use Claude Haiku 4

Claude Haiku 4 excels at chatbots, classification, cost-sensitive, high-volume tasks.

Strengths:

  • Very fast response times
  • 200K context window
  • Affordable for Anthropic quality
  • Good instruction following

Best for:

chatbotsclassificationcost-sensitivehigh-volume
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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