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
Install
Pick your client. Read the repository before you give any tool access to your data.
{
"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)