DeepSeek V4 Flash 0731
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total.
Model by DeepSeek
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Install
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{
"model": "deepseek/deepseek-v4-flash-0731",
"baseURL": "https://openrouter.ai/api/v1"
}OpenAI-compatible API: point any OpenAI SDK at the base URL and use this model id.
Settings it needs
OPENROUTER_API_KEYrequiredsecret
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About
Use cases: code-generation, model-inference
Reviews
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Price and limits
| Variant | Input $/M tokens | Output $/M tokens | Cached input $/M |
|---|---|---|---|
| Standard | $0.44 | $1.32 | $0.014 |
Price as of Oct 26, 2026 from OpenRouter · provider's own prices: api-docs.deepseek.com. Prices change often; check before you rely on one.
- Provider
- DeepSeek
- Model id
deepseek/deepseek-v4-flash-0731- Context window
- 1,048,576 tokens (1M)
- Max output
- 131,072 tokens
- Input
- text
- Output
- text
- Tool calling
- Yes
- Structured outputs
- Yes
- Reasoning
- Yes
- Weights
- Open: deepseek-ai/DeepSeek-V4-Flash-0731
- Released
- Jul 31, 2026
- Also served as
~deepseek/deepseek-v4-flash-latest
Price changes
- Oct 26, 2026: $0.44 in / $1.32 out
- Oct 24, 2026: $0.0444 in / $0.133 out
Details
- Auth
- API key
- License
- License unknown
- Website
- www.deepseek.com
- First seen
- Oct 24, 2026
- Last checked
- Oct 26, 2026
- Source
- OpenRouter
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Cite this page
DeepSeek V4 Flash 0731: price, context window, tool use. Agent Mart. https://agentmart.dev/models/deepseek-deepseek-v4-flash-0731 (last updated 2026-10-26)