Claude 3.5 Haiku
Claude 3.5 Haiku by Anthropic: a fast 3.5-family model with Claude 3 Opus-level performance, improved tool use, and a 200K context window for sub-agents.
Model Overview
Capabilities, design details, and architectural traits
Claude 3.5 Haiku - Opus-Class Intelligence at Haiku Speed
Claude 3.5 Haiku is Anthropic's fastest model in the 3.5 family, built around a specific trade-off: it delivers performance matching Claude 3 Opus while running at speeds comparable to the prior-generation Claude 3 Haiku. This generational jump - small model speed, large model capability - defines its identity.
| Trait | Detail |
|---|---|
| Documented primary use cases | User-facing products, specialized sub-agent tasks, personalized experience generation from large data volumes |
| Tool use | Improved accuracy over Claude 3 Haiku |
| Instruction following | Explicitly improved over prior Haiku generation per official model card addendum |
Built for Sub-Agent and High-Volume Workflows
Anthropic explicitly positions Claude 3.5 Haiku for sub-agent roles inside larger pipelines - fast, accurate tool calls with low latency. It is also documented as suited for generating personalized experiences from large structured datasets such as purchase history or inventory records - a specific, non-generic use pattern that separates it from its Haiku predecessor.
Benchmark Performance
Independent evaluations · Artificial Analysis
Accuracy & Capability Details
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| Model Details | |||
|---|---|---|---|
| General Info | |||
| Provider | Anthropic | Anthropic | Anthropic |
| Release Date | October 22, 2024 | September 22, 2026 | September 28, 2026 |
| Knowledge Cutoff | Jul 2024 | - | Jun 2026 |
| Context & Limits | |||
| Context Window | 200K | 1M Best Context Window | 1M Best Context Window |
| Pricing (per 1M tokens) | |||
| Input Pricing | $0.80 Best Input Pricing | $4 | $2 |
| Output Pricing | $4 Best Output Pricing | $20 | $10 |
| Modalities | |||
| Inputs | textimage | textimagefile | textimagefile |
| Outputs | text | text | text |
| Benchmarks (0-100) | |||
| Intelligence Index | 8.9 | 57.6 Best Intelligence Index | 56.0 |
| Coding Index | 15.9 | - | - |
| Agentic Index | 1.9 | - | - |
Humanity's Last Exam
Extremely difficult logical reasoning and knowledge.
Long Context Reasoning
Logical reasoning over long context windows.
SciCode Benchmark
Scientific coding and mathematical modeling.
Independent evaluation data provided by Artificial Analysis. To view the latest benchmarks and full details, visit their official site.
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