Claude Haiku 4.5 pricing
Claude Haiku 4.5 API cost from Anthropic — $1.00 per 1M input tokens and $5.00 per 1M output tokens. Fastest, near-frontier. Estimate your real monthly bill below, then compare it against every other model.
Fast / cheap 200K context · all prices USD per 1M tokens, list price last verified 2026-06-27.
Claude Haiku 4.5 capabilities & limits
Representative specs for this tier — confirm exact limits in the Anthropic docs.
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Call Claude Haiku 4.5 from your code
The exact model string and endpoint to use. Uses the Anthropic API format.
claude-haiku-4-5https://api.anthropic.com/v1ANTHROPIC_API_KEYcurl https://api.anthropic.com/v1/messages \
-H "x-api-key: $ANTHROPIC_API_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "content-type: application/json" \
-d '{
"model": "claude-haiku-4-5",
"max_tokens": 1024,
"messages": [{"role": "user", "content": "Hello"}]
}'Model strings follow each provider's naming convention; confirm the current id in the Anthropic docs before relying on it.
What a Claude Haiku 4.5 API call actually costs
Blended input + output cost at Claude Haiku 4.5's list rates — useful yardsticks before you commit to volume.
Claude Haiku 4.5 cost calculator
Enter your monthly volume to estimate the Claude Haiku 4.5 bill. Runs entirely in your browser.
Anthropic models — Claude Haiku 4.5 in context
How Claude Haiku 4.5 prices against its siblings. Cheapest reference cost first.
| Model | Input /1M | Output /1M | Cost / call* | Context | Type |
|---|---|---|---|---|---|
| Claude Haiku 4.5 Fastest, near-frontier | $1.00 | $5.00 | $0.0060 | 200K | Fast / cheap |
| Claude Sonnet 4.6 Best speed/intelligence; caching cuts input ~90% | $3.00 | $15.00 | $0.018 | 1M | Balanced |
| Claude Opus 4.8 Top Opus reasoning/agentic | $5.00 | $25.00 | $0.030 | 1M | Flagship |
| Claude Fable 5 Most capable widely released | $10.00 | $50.00 | $0.060 | 1M | Flagship |
*Reference cost of one call with 1,000 input + 1,000 output tokens — a neutral yardstick. Use the calculator for your real usage. Cheapest row highlighted.
How Claude Haiku 4.5 pricing works
Claude Haiku 4.5 is billed per token: a lower input price of $1.00 per million tokens for everything you send, and a higher output price of $5.00 per million for everything the model generates. To turn that into a real Claude Haiku 4.5 bill, multiply by your monthly request volume and average prompt/response length — the calculator above does exactly that.
Prompt caching is the biggest lever on your Claude Haiku 4.5 cost: cached input tokens bill at just $0.100 per million — about 90% cheaper. If you reuse a long system prompt or context across calls, caching can dramatically cut the input portion of your bill.
List prices move fast — always confirm the current numbers on the official Anthropic pricing page before relying on them for budgeting.
Claude Haiku 4.5 pricing FAQ
How much does the Claude Haiku 4.5 API cost?
Claude Haiku 4.5 costs $1.00 per 1M input tokens and $5.00 per 1M output tokens, with cached input at $0.100 per 1M (about 90% off). A typical 3K-input / 500-output call works out to about $0.0055.
What is Claude Haiku 4.5's context window?
Claude Haiku 4.5 has a 200K-token context window. Tokens you put in the prompt are billed at the $1.00 per 1M input rate.
Does Claude Haiku 4.5 support prompt caching?
Yes. Claude Haiku 4.5 bills cached input tokens at $0.100 per 1M instead of $1.00 — roughly 90% cheaper for the repeated part of your prompts.
Is there a cheaper alternative to Claude Haiku 4.5?
In the same fast / cheap tier, Gemini 1.5 Flash-8B (Google) is cheaper at $0.037 in / $0.150 out. The overall cheapest model on the market is Gemini 1.5 Flash-8B.