DeepSeek V4.1-Flash-1017
NewDeepSeek 2026-10-17 推的 V4.1-Flash-1017，模型名还是 deepseek-flash。1M 上下文、384K 输出、能读图，价格每百万 token $0.30 输入（cache miss）/ $1.20 输出，错峰时段直接半价到 $0.15 / $0.60。DeepSWE v1.1 跑到 77.0，比自家九月版本 74.2 高 2.8 分，也压过 Claude Opus 5 的 74.0；但 Terminal-Bench 4.0 只有 42.3，Claude Opus 5 是 51.8，长链路终端任务还是 Claude 稳。网页版和 App 免费，不用绑卡。
Key Features
Rating Details
6800 reviews
Alternative Tools
Capability Expansion
1M 上下文 + 384K 最大输出
Click to learn detailed application scenarios for this capability
支持图像输入（同门的 v4-pro 不支持，只有 flash 有）
See how this capability performs in real usage
思考 / 非思考双模式，思考强度 1-100 可调
Explore how this capability improves work efficiency
错峰半价：非高峰 $0.15 输入 / $0.60 输出（每百万 token）
Learn about the latest updates and optimizations for this capability
Tip: Most AI tools support API access, allowing you to integrate them into third-party applications or automated workflows. This tool offers a free version, try it out before deciding whether to upgrade.
Update Notes
Latest Update
Last updated: October 18, 2026
Tool ratings and review data are regularly updated based on user feedback
Feature lists and pricing information may change due to official updates; refer to the official website for accuracy
If you find any inaccurate information, feel free to provide feedback through the comment section
How to Get Started with DeepSeek V4.1-Flash-1017
Create an Account
Visit the DeepSeek V4.1-Flash-1017 official website and click the register button to create an account. Use email or Google/Apple account for quick registration.
Choose a Suitable Plan
Based on your usage needs, choose the free or paid version. The free version already has basic features; paid versions unlock more advanced features.
Start Using
Log in to start using DeepSeek V4.1-Flash-1017. Recommended to start with the 1M 上下文 + 384K 最大输出 feature.
Use Cases
1M 上下文 + 384K 最大输出
Suitable for daily tasks and beginner usage scenarios
支持图像输入（同门的 v4-pro 不支持，只有 flash 有）
Supports professional-level applications and complex tasks
思考 / 非思考双模式，思考强度 1-100 可调
A powerful tool to improve work and study efficiency
错峰半价：非高峰 $0.15 输入 / $0.60 输出（每百万 token）
Explore more possibilities with AI
Tips & Best Practices
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Using specific and clear prompts可以获得更准确的回答
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Make full use of context dialogue capability - continue asking questions in the same session
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Try different expressions to find the interaction style that works best for you
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Make full use of the free quota before deciding whether to upgrade
