anthropic/claude-haiku-4-5-20251001
Claude Haiku 4.5 (20251001) is the fastest Claude 4.x model with near-frontier intelligence at a 200k token context window, supporting vision input.
api_example.sh
Pricing
Pay-per-use, no commitments
Technical Specifications
Model Architecture & Performance
API Reference
Complete parameter documentation
| Parameter | Type | Default | Description |
|---|---|---|---|
| stream | boolean | true | Enable streaming responses for real-time output. |
| temperature | number | 0.2 | Controls randomness. Higher values can increase creativity. |
| max_tokens | number | 4096 | Maximum number of tokens to generate in the response. |
| top_p | number | 0 | Nucleus sampling: considers tokens with top_p probability mass. |
| reasoning_effort | select | medium | Controls how much reasoning depth Claude applies (quality vs latency). |
Explore the full request and response schema in our external API documentation
Performance
Strengths & considerations
| Strengths | Considerations |
|---|---|
| Fastest Claude 4.x tier 200k-token context window Vision support | Lower intelligence than Sonnet/Opus tiers on the hardest tasks |
Use cases
Recommended applications for this model
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Enterprise
Platform Integration
Docker Support
Official Docker images for containerized deployments
Kubernetes Ready
Production-grade KBS manifests and Helm charts
SDK Libraries
Official SDKs for Python, Javascript, Go, and Java
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