DeepSeek V4 Flash vs Grok 4.20 Beta
deepseek/deepseek-v4-flash · x-ai/grok-4.20-beta
As of November 3, 2026, DeepSeek V4 Flash is the cheaper API on UberLLM: $0.0091 per million input tokens and $0.0182 per million output, versus $0.1750 / $0.3500 for Grok 4.20 Beta, about 95% 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 DeepSeek V4 Flash to cut cost; choose Grok 4.20 Beta when context size wins. Grok 4.20 Beta carries the larger context window (2,000,000 vs 1,000,000 tokens), which can matter for long-document work.
DeepSeek V4 Flash vs Grok 4.20 Beta, side by side
| Spec | DeepSeek V4 Flash | Grok 4.20 Beta |
|---|---|---|
| Price · input / 1M | $0.0091 | $0.1750 |
| Price · output / 1M | $0.0182 | $0.3500 |
| Context length | 1,000,000 | 2,000,000 |
| Max output tokens | 128,000 | 128,000 |
| Input modalities | text | text, image |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | — | Yes |
| Reasoning | Yes | Yes |
| % off list | 90% off | 86% off |
| First token, median (7 days) | 4.5 s (1,666 requests) | — |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 3, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
DeepSeek V4 Flash vs Grok 4.20 Beta — FAQ
Is DeepSeek V4 Flash or Grok 4.20 Beta cheaper?
DeepSeek V4 Flash is cheaper on a blended token mix, by about 95%. 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 DeepSeek V4 Flash and Grok 4.20 Beta?
DeepSeek V4 Flash: $0.0091 in / $0.0182 out per 1M tokens. Grok 4.20 Beta: $0.1750 in / $0.3500 out per 1M tokens. That's roughly a 95% blended difference. Prices are live; UberLLM adds no fee.
Can I use both DeepSeek V4 Flash and Grok 4.20 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.