Claude 3 OpusvsClaude 3.5 Haiku
Anthropic vs Anthropic — Side-by-side model comparison
Head-to-Head Comparison
| Metric | Claude 3 Opus | Claude 3.5 Haiku |
|---|---|---|
| Provider | ||
| Arena Rank | #7 | #12 |
| Context Window | 200K | 200K |
| Input Pricing | $15.00/1M tokens | $0.80/1M tokens |
| Output Pricing | $75.00/1M tokens | $4.00/1M tokens |
| Parameters | Undisclosed | Undisclosed |
| Open Source | No | No |
| Best For | Complex analysis, research, nuanced writing | Fast coding, data extraction, classification |
| Release Date | Mar 4, 2024 | Oct 29, 2024 |
Claude 3 Opus
Claude 3 Opus, developed by Anthropic, is the most capable model in the Claude 3 generation with a 200K token context window. The model specializes in complex analysis, research synthesis, nuanced writing, and tasks requiring deep comprehension of lengthy documents. Claude 3 Opus demonstrated state-of-the-art performance when released, matching or exceeding GPT-4 on multiple benchmarks including MMLU and HumanEval. Its Constitutional AI training approach emphasizes safety and accuracy while maintaining strong creative and analytical capabilities. Priced at $15.00 per million input tokens and $75.00 per million output tokens, it targets enterprise use cases where output quality justifies premium pricing. Claude 3 Opus ranks #7 on the Chatbot Arena leaderboard, reflecting its position among the most capable language models available.
View Anthropic profile →Claude 3.5 Haiku
Claude 3.5 Haiku, developed by Anthropic, is a speed-optimized model with a 200K token context window designed for high-throughput production workloads. The model excels at fast code generation, data extraction, classification, and real-time conversational AI where sub-second response times are critical. Despite being the lightest model in Anthropic's current lineup, Claude 3.5 Haiku delivers performance that surpasses many larger models on coding and structured reasoning tasks. It supports tool use, vision capabilities, and system prompts for production deployments. Priced at $0.80 per million input tokens and $4.00 per million output tokens, it offers strong price-to-performance ratio. Claude 3.5 Haiku ranks #12 on the Chatbot Arena leaderboard, positioning it as one of the strongest compact models available from any major provider.
View Anthropic profile →Key Differences: Claude 3 Opus vs Claude 3.5 Haiku
Claude 3 Opus ranks higher in arena benchmarks (#7) indicating stronger overall performance.
Claude 3.5 Haiku is 18.8x cheaper on average, making it the better choice for high-volume applications.
When to use Claude 3 Opus
- +You need the highest quality output based on arena rankings
- +Quality matters more than cost
- +Your use case involves complex analysis, research, nuanced writing
When to use Claude 3.5 Haiku
- +Budget is a concern and you need cost efficiency
- +Your use case involves fast coding, data extraction, classification
Cost Analysis
At current pricing, Claude 3.5 Haiku is 18.8x more affordable than Claude 3 Opus. For a typical enterprise workload processing 100M tokens per month:
Claude 3 Opus monthly cost
$4,500
100M tokens/mo (50/50 in/out)
Claude 3.5 Haiku monthly cost
$240
100M tokens/mo (50/50 in/out)
The Verdict
Claude 3.5 Haiku wins our head-to-head comparison with 2 out of 5 category wins. It's the stronger choice for fast coding, data extraction, classification, though Claude 3 Opus holds an edge in complex analysis, research, nuanced writing.
Last compared: April 2026 · Data sourced from public benchmarks and official pricing pages