What a DeepSeek V4 agent is
A DeepSeek V4 agent uses V4 models to plan, read files, call tools, and complete code tasks. Reasonix brings that workflow to the terminal.
DeepSeek V4 agent
DeepSeek V4 agent: how Reasonix uses Flash and Pro
A DeepSeek V4 agent page needs a clear model rule: Flash for cost-efficient iteration, Pro for stronger reasoning, and Reasonix as the terminal path.
deepseekv4 agentDeepSeek V4 agentDeepSeek V4 coding agentDeepSeek V4 Pro agentDeepSeek V4 Flash agent
Flash versus Pro
Flash is the default for speed and cost across many turns. Pro should be reserved for harder reasoning and high-risk code changes.
Official facts
- DeepSeek V4 Preview introduced DeepSeek-V4-Pro and DeepSeek-V4-Flash with 1M context.
- DeepSeek Reasonix docs state that Reasonix uses DeepSeek-V4-Flash by default.
- Reasonix can switch to DeepSeek-V4-Pro with /pro for one turn or /preset max for the session.
Agent setup path
- 1Use DeepSeek-V4-Flash for routine repository understanding and small fixes.
- 2Use /pro for difficult debugging, architecture, or migration planning.
- 3Use /preset max only when the whole session needs Pro.
- 4Keep API keys local and confirm command permissions before edits.
DeepSeek V4 agent command
cd /path/to/my-project npx reasonix code # default: DeepSeek-V4-Flash /pro /preset max
DeepSeek V4 agent FAQ
What model does Reasonix use by default?
The DeepSeek Reasonix docs state that the default is DeepSeek-V4-Flash.
How do I use DeepSeek-V4-Pro?
Use /pro for the next turn or /preset max for the full session.
Should every task use Pro?
No. Flash is the better default; Pro is for harder reasoning work.
Turn DeepSeek V4 into a local coding session
Use official Reasonix notes for setup, then choose Flash or Pro deliberately.
DeepSeek long-tail pages
Related DeepSeek V4 pages
These pages answer DeepSeek coding agent, DeepSeek code, DeepSeek V4 agent, and DeepSeek V4 code searches before routing readers back to Reasonix.
deepseek coding agent
DeepSeek coding agent: terminal path through Reasonix
DeepSeek coding agent guide for Reasonix, DeepSeek V4 Flash/Pro, npx reasonix code, local API keys, and terminal coding work.
DeepSeek coding agentdeepseek codeDeepSeek code: connect DeepSeek to a local coding workflow
DeepSeek code guide for developers using Reasonix, DeepSeek CLI workflow, API keys, and npx reasonix code inside a project directory.
DeepSeek codeDeepSeekv4 codeDeepSeek V4 code: use V4 models for local coding work
DeepSeekv4 code guide for V4 Flash, V4 Pro, model IDs, API keys, Reasonix CLI, and local coding workflow.
DeepSeek V4 code