DeepInfra route for DeepSeek V4.1 Flash; Novita's V4 Flash route sunsets Oct 9

deepseek/deepseek-v4.1-flash already ships as DeepSeek V4.1 Flash — 1M-token context, vision in, text out, controllable reasoning effort. It now also routes on deepinfra-byok as wire id deepseek-ai/DeepSeek-V4.1-Flash. DeepInfra publishes $0.20 per million input tokens, $0.60 per million output tokens, and $0.006 per million cached input tokens, currently shown at 30% off while a promotion runs. AnyRouter charges $0 on a BYOK route, so DeepInfra bills you at its own rate. The Direct DeepSeek, OpenRouter, Ollama, NVIDIA NIM, and AIHubMix hops stay; this is not a new listing id.

One date to put on your calendar: Novita retires deepseek/deepseek-v4-flash at 16:00 UTC on **Oct 9, 2026**. Both Novita routes on deepseek/deepseek-v4-flash now carry that date on their cards, so you can see it before a request fails. The listing itself stays live — its other hosts keep serving — and Novita's own migration target is DeepSeek V4.1 Flash, the same product the DeepSeek API serves under the model name deepseek-flash.

• App code — Vercel AI SDK or OpenAI SDK.
• Coding agent — anyr claude / anyr opencode / anyr codex (playground).
• Bring your own key — Dashboard → BYOK.

Both listings are **BYOK-only** — no platform route serves them today, so add a provider key and the request goes out with it. Try V4.1 Flash in the Vercel AI SDK; createAnyRouter() reads ANYROUTER_API_KEY:

import { createAnyRouter } from "@anyr/ai-sdk-provider"
import { generateText } from "ai"

const anyrouter = createAnyRouter()

const { text } = await generateText({
  model: anyrouter("deepseek/deepseek-v4.1-flash"),
  prompt: "Rank these three refactors by risk and say why.",
})
console.log(text)

Or launch a coding agent through the anyr CLI:

curl -fsSL https://anyrouter.dev/setup.sh | bash
anyr login
anyr claude --model "deepseek/deepseek-v4.1-flash"

curl -fsSL https://anyrouter.dev/setup.sh | bash
anyr login
anyr opencode --model "deepseek/deepseek-v4.1-flash"

curl -fsSL https://anyrouter.dev/setup.sh | bash
anyr login
anyr codex --model "deepseek/deepseek-v4.1-flash"

More: AI SDK · OpenAI SDK · coding agents · BYOK setup.