Claude Sonnet 4.6 vs DeepSeek V4.1 Flash
anthropic/claude-sonnet-4.6 · deepseek/deepseek-v4.1-flash
As of October 26, 2026, Claude Sonnet 4.6 is the cheaper API on UberLLM: $0.0300 per million input tokens and $0.1500 per million output, versus $0.0042 / $0.2100 for DeepSeek V4.1 Flash — about 24% less on a blended 3:1 token mix. Both are reached through one OpenAI-compatible key and routed to the cheapest healthy seller, with no UberLLM fee added, so the price you see is the price you pay. Choose Claude Sonnet 4.6 to cut cost; choose DeepSeek V4.1 Flash when context size wins — DeepSeek V4.1 Flash carries the larger context window (1,048,576 vs 1,000,000 tokens), which can matter for long-document work.
Claude Sonnet 4.6 vs DeepSeek V4.1 Flash, side by side
| Spec | Claude Sonnet 4.6 | DeepSeek V4.1 Flash |
|---|---|---|
| Price · input / 1M | $0.0300 | $0.0042 |
| Price · output / 1M | $0.1500 | $0.2100 |
| Context length | 1,000,000 | 1,048,576 |
| Max output tokens | 64,000 | 384,000 |
| Input modalities | text | text, image |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | — | Yes |
| Reasoning | Yes | Yes |
| Cheapest seller | pyro | UberLLM |
| % off list | 99% off | 79% off |
Live prices via UberLLM, routed to the cheapest healthy seller. The price shown has no UberLLM fee added. Updated October 26, 2026.
Claude Sonnet 4.6 vs DeepSeek V4.1 Flash — FAQ
Is Claude Sonnet 4.6 or DeepSeek V4.1 Flash cheaper?
Claude Sonnet 4.6 is cheaper on a blended token mix, by about 24%. UberLLM routes every request to the cheapest healthy seller and bills the price shown, with no fee added.
What's the price difference between Claude Sonnet 4.6 and DeepSeek V4.1 Flash?
Claude Sonnet 4.6: $0.0300 in / $0.1500 out per 1M tokens. DeepSeek V4.1 Flash: $0.0042 in / $0.2100 out per 1M tokens. That's roughly a 24% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Claude Sonnet 4.6 and DeepSeek V4.1 Flash 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.