Claude Opus 5.5 vs Grok 4.20 Multi-Agent Beta
anthropic/claude-opus-5.5 · x-ai/grok-4.20-multi-agent-beta
As of October 31, 2026, Grok 4.20 Multi-Agent Beta is the cheaper API on UberLLM: $0.6394 per million input tokens and $1.28 per million output, versus $1.59 / $7.95 for Claude Opus 5.5, about 82% less when output is 3 tokens for every input token. These are the median prices buyers paid over the last 24 hours. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose Grok 4.20 Multi-Agent Beta to cut cost; choose Claude Opus 5.5 when its capabilities fit your task better.
Claude Opus 5.5 vs Grok 4.20 Multi-Agent Beta, side by side
| Spec | Claude Opus 5.5 | Grok 4.20 Multi-Agent Beta |
|---|---|---|
| Price · input / 1M | $1.59 | $0.6394 |
| Price · output / 1M | $7.95 | $1.28 |
| Context length | 1,000,000 | 2,000,000 |
| Max output tokens | 128,000 | 128,000 |
| Input modalities | text, image, file | text, image |
| Output modalities | text | text |
| Tools / functions | Yes | — |
| Vision (image input) | Yes | Yes |
| Reasoning | Yes | Yes |
| % off list | 60% off | 49% off |
Median prices buyers paid on UberLLM over the last 24 hours. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated October 31, 2026.
Claude Opus 5.5 vs Grok 4.20 Multi-Agent Beta — FAQ
Is Claude Opus 5.5 or Grok 4.20 Multi-Agent Beta cheaper?
Grok 4.20 Multi-Agent Beta is cheaper on a blended token mix, by about 82%. 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 Opus 5.5 and Grok 4.20 Multi-Agent Beta?
Claude Opus 5.5: $1.59 in / $7.95 out per 1M tokens. Grok 4.20 Multi-Agent Beta: $0.6394 in / $1.28 out per 1M tokens. That's roughly a 82% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Claude Opus 5.5 and Grok 4.20 Multi-Agent Beta 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.