DeepSeek V4.1 Flash Free by OpenCode Zen

OpenCode's free build of DeepSeek V4.1 Flash. OpenCode's model docs (checked October 24, 2026) list it as free for a limited time, say its provider follows a zero-retention policy and does not use your data for training, and now list it in place of the earlier DeepSeek V4 Flash Free. The catch: free-tier chat models only work inside the OpenCode client, not from other apps or SDKs. The paid DeepSeek V4.1 Flash costs $0.30 input and $1.20 output per 1M tokens on the same console.

Access
Free API tier
Free limits
Free for a limited time, inside OpenCode only
Modality
code, text
Credit card
Not required
Commercial use
Unclear, verify
Context window
200,000 tokens
Model ID
deepseek-v4.1-flash-free
Checked
Nov 12, 2026

How to use DeepSeek V4.1 Flash Free

Install OpenCode, run /connect, choose the OpenCode provider and paste your API key from the OpenCode console, then run /models and pick DeepSeek V4.1 Flash Free (model ID deepseek-v4.1-flash-free).

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Frequently asked

Is DeepSeek V4.1 Flash Free free?

Yes. OpenCode Zen offers it as Free API tier with these limits: Free for a limited time, inside OpenCode only. No credit card is required.

Can I use DeepSeek V4.1 Flash Free commercially?

Commercial terms are not clearly documented. Check the provider's current terms before shipping.

How do I start using DeepSeek V4.1 Flash Free?

Install OpenCode, run /connect, choose the OpenCode provider and paste your API key from the OpenCode console, then run /models and pick DeepSeek V4.1 Flash Free (model ID deepseek-v4.1-flash-free).

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