AI Recommendation
Should you use DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash is listed for chat workloads and supports a 1.0M context window.
Use it when OpenCode Zen's free tier is enough for evaluation, demos, or light production traffic.
DeepSeek V4.1 Flash Free API on OpenCode Zen
Free API VerifiedDeepSeek V4.1 Flash model for reasoning and agentic coding
Free APIOpenAI compatibleReasoningTool callingJSON modeVisionReasoning
API Details
Copy-ready connection details
Base URL
https://opencode.ai/zen/v1 Model ID
deepseek-v4.1-flash API format OpenAI Chat Completions
Technical Details
DeepSeek V4.1 Flash specifications
Context window 1.0M
Max output 384K
Status Online
Family deepseek-flash
Knowledge cutoff 2025-05
Released Sep 10, 2026
Last updated Sep 10, 2026
Free listing since Sep 19, 2026
Input text, image
Output text
Capabilities reasoning, tool calling, structured output, file attachments, temperature control
Open weights Yes
Weights Hugging Face
Best for
- Chat
Benchmark Overview
Benchmark signals for DeepSeek V4.1 Flash
Intelligence General reasoning and instruction following
39.5/100 Speed Observed generation speed
211 tok/s Context Maximum listed context window
1.0M Pricing
DeepSeek V4.1 Flash pricing per 1M tokens
Input $0.3 per 1M tokens
Output $1.2 per 1M tokens
Access Available OpenCode Zen
Availability
DeepSeek V4.1 Flash availability by provider
We only found this DeepSeek V4.1 Flash listing on OpenCode Zen in the current catalog. Use the related models section for nearby alternatives.
| Provider | Model listing | Access | Context | API | Limits |
|---|---|---|---|---|---|
| | DeepSeek V4.1 Flash | Free tier | 1.0M | Native | Varies |
Compare
DeepSeek V4.1 Flash alternatives to consider
| Model | Provider | Context | Access |
|---|---|---|---|
| big-pickle | OpenCode Zen | N/A | Free tier |
| DeepSeek V4 Flash | OpenCode Zen | 1.0M | Check provider |
| MiMo-V2.5 | OpenCode Zen | 1.0M | Free tier |
| Nemotron 3 Ultra 550B A55B | OpenCode Zen | 1.0M | Free tier |
| North Mini Code | OpenCode Zen | 256K | Check provider |
Typical Use Cases
DeepSeek V4.1 Flash use cases
Chat
DeepSeek V4.1 Flash is tagged for chat in this catalog and works with OpenAI-compatible client libraries.
FAQ
DeepSeek V4.1 Flash free API FAQ
Is DeepSeek V4.1 Flash free to use?
DeepSeek V4.1 Flash is listed with free API access on OpenCode Zen, subject to the provider's quota and account policy.
What is the DeepSeek V4.1 Flash model ID?
The model ID shown in this catalog is deepseek-v4.1-flash.
What context window does DeepSeek V4.1 Flash support?
The listed context window is 1.0M tokens with up to 384K output tokens.
More about DeepSeek V4.1 Flash
Free DeepSeek V4.1 Flash API.
For API keys, setup steps, and provider-level limits, see the OpenCode Zen provider page.