DeepSeek V4 Flash Just Aced the Hardest AI Reasoning Benchmark — for $0.02 a Task
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When DeepSeek released V4 Flash on July 31, 2026, it quietly accomplished something that would have seemed impossible six months ago: it scored 89.0% on ARC-AGI-1 and 61.4% on ARC-AGI-2 — the hardest publicly available abstract reasoning benchmarks — for about two cents per task . To put that in perspective: GPT-5.2 Pro and Claude Opus 4.8, the most expensive frontier models, cost orders of magnitude more per task on the same benchmark and score only marginally higher. DeepSeek V4 Flash is…
1Key Takeaways
- When DeepSeek released V4 Flash on July 31, 2026, it quietly accomplished something that would have seemed impossible six months ago: it scored 89.0% on ARC-AGI-1 and 61.4% on ARC-AGI-2 — the hardest publicly available abstract reasoning benchmarks — for about two cents per task .
- To put that in perspective: GPT-5.2 Pro and Claude Opus 4.8, the most expensive frontier models, cost orders of magnitude more per task on the same benchmark and score only marginally higher.
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3Why it matters
Coding AI shifts how fast software ships and how much human review each change needs. DEV — ML reports that when DeepSeek released V4 Flash on July 31, 2026, it quietly accomplished something that would have seemed impossible six months ago: it scored 89.0% on ARC-AGI-1 and 61.4% on ARC-AGI-2 — the hardest publicly available abstract reasoning benchmarks — for about two cents per task .
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