Skip to content
DeepSeek V4.1 Flash logo

DeepSeek V4.1 Flash

Language model API for text generation and reasoning tasks.

Developer toolsAPIFor developers
deepseek.com ↗GitHubWikipediaWikidataLaunched on Product Hunt · 2026-09-10
Hangzhou DeepSeek Artificial Intelligence Basic Technology Research Co., Ltd., doing business as DeepSeek, is a Chinese artificial intelligence (AI) company that develops open weights large language models (LLMs).First sentence of the English Wikipedia article
At a glanceswept 2026-09-17
Price
Price not read
Use
Widely used≈ 490k visits a month · estimate, 2026-09
Activity
Actively maintainednothing dated on the site
Company
since 2023per Wikidata
Runs as
API
Alternatives in Developer toolsby use, among tools still maintained
  • V0 DevDeploys and runs applications and AI agents on serverless infrastructure with sandboxed environments and model gateways.Widely usedActivity not read yet
  • JetBrainsWidely usedActively maintained
  • NVIDIAWidely usedActively maintained
  • TwilioWidely usedActively maintained
  • PostHogIngests product data and runs AI agents to investigate issues and recommend product improvements.Widely usedMaintained
  • ZenodoWidely usedMaintained

All Developer tools tools →

The companyeach fact with its source · read 2026-09-18
  • Founded2023per Wikidata
  • Domain since2000domain registered
  • HeadquartersHangzhouper Wikidata
  • Owned byHigh-Flyerper Wikidata
  • Industryartificial intelligenceper Wikidata
Questions this page answers
  • What is DeepSeek V4.1 Flash?

    Language model API for text generation and reasoning tasks.

  • Do people use DeepSeek V4.1 Flash?

    Widely used: ≈ 490k visits a month · estimate, 2026-09.

  • Is DeepSeek V4.1 Flash still maintained?

    Actively maintained.

  • What are alternatives to DeepSeek V4.1 Flash?

    In Developer tools, by use: V0 Dev, JetBrains, NVIDIA, Twilio, PostHog, Zenodo.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one row at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.