Claude 3 Haiku vs O1 Preview

Performance benchmarks + pricing comparison — updated April 2026

Claude 3 Haiku

Anthropic

Cheapest Claude model. Fast responses for simple tasks and basic coding.

Input$0.250/M
Output$1.25/M
Context200K tokens
Best ForSimple queries, fast responses, cost-sensitive tasks
Benchmark45/100

O1 Preview

OpenAI

OpenAI's first reasoning model. Strong at complex problem solving but expensive.

Input$15.00/M
Output$60.00/M
Context128K tokens
Best ForComplex math, science, algorithm design

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioClaude 3 HaikuO1 PreviewSavings
Small Script (1K lines) $0.05 $2.32 Claude 3 Haiku saves $2.28 (98%)
Medium Feature (10K lines) $0.34 $17.25 Claude 3 Haiku saves $16.91 (98%)
Large Project (50K lines) $1.69 $86.25 Claude 3 Haiku saves $84.56 (98%)
Code Review (5K lines) $0.07 $4.13 Claude 3 Haiku saves $4.05 (98%)

Verdict

Claude 3 Haiku wins on both price and performance — $0.250/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models