Claude Haiku 4.5 API
LLMClaude Haiku 4.5 is the fast Claude option, with a 200K context window and the lowest listed Claude token price.
- Input · USD / 1M tokens$0.28 USDOfficial price
$1 USD - Output · USD / 1M tokens$1.4 USDOfficial price
$5 USD - Savings72%
- Context200K
- Last verified2026-07-22
- View tool pricing and billing rules
What are we making today?
Bring an idea, a question, or a first draft.
01
Where it fits
Claude Haiku 4.5 is the fast Claude option, with a 200K context window and the lowest listed Claude token price.
Choose it for frequent, responsive agent calls that do not need the 1M context window of Sonnet or Opus.
02
Model capabilities
Vision
Accepts visual input alongside text for multimodal coding and analysis tasks.
Tool use
Can select and call tools in agent workflows that support structured tool use.
Fast responses
Optimized for responsive iteration and higher-volume agent tasks.
03
OpenAI-compatible API
Keep your client and change the base URL, API key, and model ID.
curl https://api.omniakey.com/v1/chat/completions \
-H "Authorization: Bearer $OMNIAKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-haiku-4-5",
"messages": [{"role": "user", "content": "Explain this codebase"}],
"stream": true
}'04
Compatible coding tools
More Anthropic models
Frequently asked questions
How much does Claude Haiku 4.5 cost on OmniaKey?
OmniaKey charges $0.28 USD per 1M input tokens and $1.4 USD per 1M output tokens, in USD. Official prices are $1 USD and $5 USD; you save 72%.
What is the context window for Claude Haiku 4.5?
The listed context window is 200K. Actual usable limits can also depend on the client and upstream request format.
Which coding tools work with Claude Haiku 4.5?
The current catalog lists compatibility with Claude Code, Cursor, Cline, Aider. Use the model ID shown on this page when the client supports model selection.