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Claude Haiku 4.5 vs Claude Opus 4.1
Comprehensive side-by-side LLM comparison
Both models show comparable benchmark performance. Claude Haiku 4.5 offers 168.0K more tokens in context window than Claude Opus 4.1. Claude Haiku 4.5 is $84.00 cheaper per million tokens. Claude Opus 4.1 is available on 4 providers. Both models have their strengths depending on your specific coding needs.
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Anthropic
Claude Haiku 4.5 continues Anthropic's tradition of fast, efficient models in the fourth generation Claude family. Designed to maintain the hallmark speed and cost-effectiveness of the Haiku line while incorporating advancements from the Claude 4 series, it serves applications requiring rapid processing and quick turnaround times.
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Anthropic
Claude Opus 4.1 represents an iteration within the Claude 4 Opus line, built to deliver refined performance in complex reasoning and analysis tasks. Developed as part of Anthropic's flagship tier, it incorporates improvements to the foundational capabilities that define the Opus family of models.
2 months newer
Claude Opus 4.1
Anthropic
2025-08-05
Claude Haiku 4.5
Anthropic
2025-10-15
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Pricing Comparison
Cost per million tokens (USD)
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Claude Haiku 4.5
Input:$1.00
Output:$5.00($84.00 cheaper)
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Claude Opus 4.1
Input:$15.00
Output:$75.00
Performance Metrics
Context window and performance specifications
Average performance across 6 common benchmarks
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Claude Haiku 4.5
Average Score:73.3%
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Claude Opus 4.1
Average Score:73.9%(+0.6%)
Performance comparison across key benchmark categories
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Claude Haiku 4.5
Coding73.3%
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Claude Opus 4.1
Coding74.5%(+1.2%)
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Knowledge Cutoff
Training data recency comparison
Claude Haiku 4.5
2025-02-01
More recent knowledge cutoff means awareness of newer technologies and frameworks
Provider Availability & Performance
Available providers and their performance metrics
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Claude Haiku 4.5
1 providers
Anthropic
Throughput: 100 tok/s
Latency: 0.3ms
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Claude Opus 4.1
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Claude Haiku 4.5
Avg Score:73.3%
Providers:1
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Claude Opus 4.1
Avg Score:73.9%(+0.6%)
Providers:4