DeepSeek 新模型在 Agent Arena 排开源第三，API 上线且支持 Codex，做智能体可以试试。
DeepSeek 发布 DeepSeek-V4-Flash-20260731（High）版本，在 Agent Arena 综合排名第 21，净提升 +1.98%，开源模型中位列第 3。该成绩基于 12.5K 次真实智能体会话评估，比 DeepSeek-V4-Pro 高 6 位（-0.47%），比上一代 V4-Flash 高 13 位（-2.81%）。分项信号中 Confirmed Success 达到 +6.99%，而 Steerability 为 -2.31%。官方 API 同步开放公开测试，原生支持 Responses API 格式，并已适配 Codex。
DeepSeek-V4-Flash-20260731 (High) by @deepseek_ai landed in Agent Arena at #21 overall (+1.98% net-i...
DeepSeek-V4-Flash-20260731 (High) by @deepseek_ai landed in Agent Arena at #21 overall (+1.98% net-improvement), and among open source #3 based on +12.5K real-world agentic sessions. This release is ranked 6 higher than DeepSeek-V4-Pro (-0.47%) and 13 higher than the previous DeepSeek-V4-Flash model (-2.81%). Across key signals, DeepSeek-V4-Flash-20260731 (High) is strong in Confirmed Success (+6.99%), but weaker in Steerability (-2.31%). Below we break down how it scored across all 5 signals, drawn from tasks submitted by a global community of users. Here’s an overview on the signals: - Confirmed Success: an explicit "yes that worked" feedback from the user - Praise vs. Complaint: implicit sentiment in users reactions - Steerability: can the model course-correct when you push back? - Bash Recovery: how it recovers from CLI errors (primary signal for tool use) - Tool Hallucination: does it call tools that don't exist DeepSeek @deepseek_ai 🚀 DeepSeek-V4-Flash Official API is now LIVE in public beta! 🔷 We’ve massively upgraded its Agent capabilities—benchmark scores are now far surpassing the V4-Pro-Preview. Check out the massive performance leap below! 👇 🔷 The official V4-Flash now natively supports the Responses API format and is fully adapted for Codex! Check out the configuration details in our official API do api-docs.deepseek.com/quick_start/ag… Meiq 🔗 View Quoted Tweet 💬 14 🔄 4 ❤️ 59 👀 6275 📊 15 ⚡