Claude Sonnet 5.5 vs Particle AI: Particle-1
anthropic/claude-sonnet-5.5 · particle-ai/particle-1
As of November 1, 2026, Claude Sonnet 5.5 is the cheaper API on UberLLM: $0.0022 per million input tokens and $0.0111 per million output, versus $0.0495 / $0.4950 for Particle AI: Particle-1, about 98% 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 Sonnet 5.5 to cut cost; choose Particle AI: Particle-1 when context size wins. Particle AI: Particle-1 carries the larger context window (1,048,576 vs 1,000,000 tokens), which can matter for long-document work.
Claude Sonnet 5.5 vs Particle AI: Particle-1, side by side
| Spec | Claude Sonnet 5.5 | Particle AI: Particle-1 |
|---|---|---|
| Price · input / 1M | $0.0022 | $0.0495 |
| Price · output / 1M | $0.0111 | $0.4950 |
| Context length | 1,000,000 | 1,048,576 |
| Max output tokens | 128,000 | 131,072 |
| 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 | 99.9% off | 1% off |
| First token, median (7 days) | 2.9 s (169 requests) | — |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 1, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
Claude Sonnet 5.5 vs Particle AI: Particle-1 — FAQ
Is Claude Sonnet 5.5 or Particle AI: Particle-1 cheaper?
Claude Sonnet 5.5 is cheaper on a blended token mix, by about 98%. 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 Sonnet 5.5 and Particle AI: Particle-1?
Claude Sonnet 5.5: $0.0022 in / $0.0111 out per 1M tokens. Particle AI: Particle-1: $0.0495 in / $0.4950 out per 1M tokens. That's roughly a 98% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Claude Sonnet 5.5 and Particle AI: Particle-1 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.