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DeepSeek ships faster, cheaper model for long coding tasks

The release completes long, messy engineering tasks at prices that undercut premium rivals by orders of magnitude.

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This brief comes from Tech Twitter’s edited headlines. The posts below are the sources grouped with the story; statements in them belong to their authors.

Aakash GuptaLead source
Five bucks gets you about 25 tries at a real programming job from DeepSeek's newest AI, and on Claude Opus 5 that same five bucks won't even cover half of one. DeepSeek says its version gets the job done more often, too. Those numbers come from DeepSWE, a test where AI models get 113 long, messy engineering tasks written from scratch, so nobody can cheat by memorizing answers. DeepSeek's new model passed 77% of them for about 20 cents a task. On the independent leaderboard, Opus 5 passes 74% and runs about $12 a task. Claude Fable 5 passes 70% at almost $22. To be fair, that 77% is DeepSeek grading its own homework, and the people who run the leaderboard haven't tested this version yet. Even if it comes in a few points lower once they do, you're still looking at something like a 60x…
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DeepSeek
🚀 DeepSeek-V4.1-Flash-1017 is here! Stronger benchmark performance, faster task completion, and shorter outputs than the previous version—a Pareto improvement in performance and cost. Now live on our website, app, and API. 🛠️ Optimized for @DeepSeekHarness, Tencent CodeBuddy, WorkBuddy, and more. Upgrade to DeepSeek Harness v0.2.1-rc.1 or later for the best experience with the new model. 1/4
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OpenRouter
DeepSeek V4.1 Flash 1017 is live on OpenRouter with DeepSeek as the first provider and many more providers on the way. @deepseek_ai's update to V4.1 Flash is more token efficient and shows major gains in agentic benchmarks. Use it now:
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elvis
Mind-blowing to see these Pareto improvements in performance and cost. More than anything, it's crazy how quickly these improvements are landing across providers. This matters a lot to builders.
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How the headline evolved

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