DeepSeek V4.1 Flash 1017 vs GPT-5.5
deepseek/deepseek-v4.1-flash-1017 · openai/gpt-5.5
As of October 26, 2026, DeepSeek V4.1 Flash 1017 is the cheaper API on UberLLM: $0.0687 per million input tokens and $0.2748 per million output, versus $1.10 / $6.60 for GPT-5.5 — about 96% 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 DeepSeek V4.1 Flash 1017 to cut cost; choose GPT-5.5 when its capabilities fit your task better.
DeepSeek V4.1 Flash 1017 vs GPT-5.5, side by side
| Spec | DeepSeek V4.1 Flash 1017 | GPT-5.5 |
|---|---|---|
| Price · input / 1M | $0.0687 | $1.10 |
| Price · output / 1M | $0.2748 | $6.60 |
| Context length | 1,048,576 | 1,000,000 |
| Max output tokens | 393,216 | 128,000 |
| Input modalities | text, image | text, image |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | Yes |
| Reasoning | Yes | — |
| Cheapest seller | 716 | UberLLM |
| % off list | 77% off | 78% off |
Live prices via UberLLM, routed to the cheapest healthy seller. The price shown has no UberLLM fee added. Updated October 26, 2026.
DeepSeek V4.1 Flash 1017 vs GPT-5.5 — FAQ
Is DeepSeek V4.1 Flash 1017 or GPT-5.5 cheaper?
DeepSeek V4.1 Flash 1017 is cheaper on a blended token mix, by about 96%. UberLLM routes every request to the cheapest healthy seller and bills the price shown, with no fee added.
What's the price difference between DeepSeek V4.1 Flash 1017 and GPT-5.5?
DeepSeek V4.1 Flash 1017: $0.0687 in / $0.2748 out per 1M tokens. GPT-5.5: $1.10 in / $6.60 out per 1M tokens. That's roughly a 96% blended difference. Prices are live; UberLLM adds no fee.
Can I use both DeepSeek V4.1 Flash 1017 and GPT-5.5 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.