Claude Haiku 4.5 API pricing
Claude Haiku 4.5 costs $1.00 per 1M input tokens and $5.00 per 1M output tokens on this gateway, with a 200K token context window. You reach it with the same key and the same OpenAI-compatible base URL as every other model in the catalogue.
Last updated: October 2026- Input / 1M tokens
- $1.00
- Output / 1M tokens
- $5.00
- Context window
- 200K
- Vendor
- Anthropic
What does Claude Haiku 4.5 cost per request?
A typical request of 5,000 input tokens and 1,500 output tokens costs about $0.013 at list price. A thousand of those requests costs about $12.50.
| Workload | Tokens | Cost at list price |
|---|---|---|
| Single chat turn | 5K in / 1.5K out | $0.013 |
| 1,000 chat turns | 5M in / 1.5M out | $12.50 |
| Small production month | 10M in / 2M out | $20.00 |
| Busy production month | 100M in / 20M out | $200 |
Model usage is drawn from your balance at the upstream list price of each model. Figures above are indicative and exclude any plan fee; the console is the source of truth for live pricing.
Where Claude Haiku 4.5 fits
Claude Haiku 4.5 is the cheapest Anthropic model on the gateway at $1.00 per 1M input tokens, and it is the natural choice for the many small calls an agent makes.
Pick it when
- You are running sub-agents, file summaries or search steps that do not need deep reasoning.
- You want Anthropic model behaviour at a price that makes retries affordable.
- You are moderating, tagging or routing traffic before it reaches an expensive model.
What to watch
- Long chains of dependent reasoning still work better on Sonnet, so keep the escalate path available.
- Output at $5.00 per 1M tokens is five times the input rate, which punishes prompts that ask for long answers.
Best for: High-frequency small calls, classification and the cheap role in a two-model Claude setup.
How to call Claude Haiku 4.5 through the gateway
Point your client at https://api.quickrouter.homes/v1 with a QuickRouter key and pass claude-haiku-4-5 as the model name. Nothing else in an OpenAI-style client changes.
curl https://api.quickrouter.homes/v1/chat/completions \
-H "Authorization: Bearer sk-qr-your-key" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-haiku-4-5",
"messages": [{"role": "user", "content": "Hello"}]
}'The console lists the model ids your key can reach - use the id exactly as it appears there.
Frequently asked questions
How much does Claude Haiku 4.5 cost?+
List price on this gateway is $1.00 per 1M input tokens and $5.00 per 1M output tokens, with a 200K token context window.
Can Haiku replace Sonnet?+
For short, well-scoped tasks often yes; for multi-step agent loops it is better used as the cheap step with Sonnet as the fallback.
Is Haiku available in Claude Code?+
Yes. Set ANTHROPIC_MODEL to claude-haiku-4-5 for a session, or switch models from inside the CLI.
One key covers every model in this guide
Create an account, pick a plan and copy an API key. Gateway plans start at $19 per month and model usage is billed at upstream list prices.