DeepSeek V4.1 Flash — Top 20 Coding, Top 16 AI Agents
Available here
Overview
DeepSeek V4.1 Flash places #33 on the Text & Chat leaderboard (HuaLinYuan Index 1475) while climbing to #20 in Coding (Index 1619) and #16 in AI Agents (Index 3.34). That split profile signals a model tuned for structured reasoning and tool use rather than pure conversation.
It suits developers building code assistants, teams prototyping agent workflows, and users who need reliable multi-step execution at a low per-token cost. The official API price is $0.30 per 1M input tokens and $1.20 per 1M output tokens.
Strengths
- Strong coding benchmark rank
- High AI Agents placement
- Low per-token pricing
- Available for free trial
Best for
- Code generation and review
- Multi-step agent workflows
- Automated data extraction
- Low-cost API prototyping
Things to know
- Mid-tier general chat rank
- Newer model, limited track record
DeepSeek V4.1 Flash vs other models
FAQ
What does DeepSeek V4.1 Flash cost — is there a free option?
The official API charges $0.30 per 1M input tokens and $1.20 per 1M output tokens. On HuaLinYuan you can try it free in LongHua AI; new users receive free trial uses.
What is this model best at?
It excels at coding tasks (ranked #20) and AI agent workflows (ranked #16), making it a strong pick for code generation, tool use, and multi-step automation.
How do I choose between DeepSeek V4.1 Flash and its peers?
Pick V4.1 Flash for coding and agent tasks at low cost. Choose Gemini 3.8 Flash or 3.7 Flash for broader chat quality, or Kimi K3 for long-context Chinese workloads.
How can I use DeepSeek V4.1 Flash on HuaLinYuan / LongHua AI?
Open LongHua AI on the site, select DeepSeek V4.1 Flash from the model picker, and start chatting. New users get free trial uses; comparable models (Gemini 3.8 Flash, Kimi K3, Gemini 3.7 Flash) are also selectable.
Similar models you can use here
Tell LongHua Tree ASI what you want — it splits the task and assigns the strongest model to each part, then delivers the finished result.