Claude Haiku 4
AnthropicLarge Language ModelProprietaryAnthropic's fastest and most affordable model. Compact yet capable, ideal for lightweight tasks, real-time responses, and cost-sensitive deployments.
Abilities
Use Cases
Available in Tools
Availability
How to Use
Pros
- Very fast responses — ideal for real-time applications and interactive chatbots
- Significantly cheaper than Sonnet and Opus while still highly capable
- 200K context window — handles long documents well for its price tier
- Supports vision and tool use — multimodal capabilities at a budget price
- Strong safety and alignment — inherits Anthropic safety approach
Cons
- Less capable than Sonnet 4 on complex reasoning and coding tasks
- Weaker creative writing compared to larger models
- Closed source — no model weights available
- Smaller ecosystem of third-party tools compared to OpenAI
What to Use It For
Perfect For
Fast and cheap — ideal for processing thousands of requests without breaking the budget
Low latency responses keep conversations flowing naturally
Fast, accurate, and cost-effective for structured data tasks at scale
Good For
Handles common programming patterns well at a fraction of Sonnet cost
Good comprehension and fast responses make it practical for support automation
Not Recommended
Reasoning depth is limited compared to larger models — struggles with hard logic chains
Try instead: Claude Opus 4, o3
Complex architectural decisions and large refactors need the depth of Sonnet or Opus
Try instead: Claude Sonnet 4
Do Not Use For
Not a reasoning model — lacks the chain-of-thought depth for competition-grade problems
Try instead: o3, DeepSeek R1
Closed source with no available weights — fully dependent on Anthropic API
Try instead: Llama 4 Maverick