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AI IntelligenceAug 19, 2026AI Intelligence
Article

DeepSeek's top-ranked V4 Flash stumbles on real agent tasks as its prices surge

DeepSeek's V4 Flash has topped model leaderboards and been hailed by developers as a "total monster" since its rollout. But in real-world testing, it completed just 53.8% of a batch of complex agent tasks. Composio ran the model through eight different agent harnesses , including Claude Code, Codex, and OpenCode, on 30 deliberately difficult, multi-step t...

Frontier EditorialSource: VentureBeat
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DeepSeek's top-ranked V4 Flash stumbles on real agent tasks as its prices surge: DeepSeek's V4 Flash has topped model leaderboards and been hailed by developers as a "total monster" since its rollout. But in real-world testing, it completed just 53.8% of a batch of complex agent tasks. Composio ran the model through eight different agent harnesses , including Claude Code, Codex, and OpenCode, on 30 deliberately difficult, multi-step t...

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