Claude Haiku 5.5 vs Claude Sonnet 4.5
anthropic/claude-haiku-5.5 · anthropic/claude-sonnet-4.5
As of November 10, 2026, Claude Haiku 5.5 is the cheaper API on UberLLM: $0.0070 per million input tokens and $0.0352 per million output, versus $0.7485 / $3.74 for Claude Sonnet 4.5, about 99% less when output is 3 tokens for every input token. These are the best prices on the market right now. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose Claude Haiku 5.5 to cut cost; choose Claude Sonnet 4.5 when context size wins. Claude Sonnet 4.5 carries the larger context window (198,000 vs 100,000 tokens), which can matter for long-document work.
Claude Haiku 5.5 vs Claude Sonnet 4.5, side by side
| Spec | Claude Haiku 5.5 | Claude Sonnet 4.5 |
|---|---|---|
| Price · input / 1M | $0.0070 | $0.7485 |
| Price · output / 1M | $0.0352 | $3.74 |
| Context length | 100,000 | 198,000 |
| Max output tokens | 50,000 | 64,000 |
| Input modalities | text, image, file | text, image |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | Yes |
| Reasoning | Yes | Yes |
| % off list | 93% off | 75.1% off |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 10, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
Claude Haiku 5.5 vs Claude Sonnet 4.5 — FAQ
Is Claude Haiku 5.5 or Claude Sonnet 4.5 cheaper?
Claude Haiku 5.5 is cheaper on a blended token mix, by about 99%. A request costs what its provider charged, UberLLM adds no fee, and every request is listed with its cost in Activity.
What's the price difference between Claude Haiku 5.5 and Claude Sonnet 4.5?
Claude Haiku 5.5: $0.0070 in / $0.0352 out per 1M tokens. Claude Sonnet 4.5: $0.7485 in / $3.74 out per 1M tokens. That's roughly a 99% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Claude Haiku 5.5 and Claude Sonnet 4.5 with one API?
Yes. Both are served through a single OpenAI-compatible endpoint — set the base URL to https://api.uberllm.dev/v1 and your UberLLM key, then switch between them by changing the model id. Anthropic SDKs work via https://api.uberllm.dev/v1/messages.