DeepSeek V4 Flash Coding Performance Falls Between Opus 4.8 and 5

corruptbytes · reddit · 2026-07-31

A developer on Reddit shared initial coding benchmark results for the DeepSeek V4 Flash model, tested using the SlopCodeBench benchmark.

Based on the author's vibe check and benchmark data, DeepSeek V4 Flash's coding performance sits somewhere between Anthropic's Opus 4.8 and Opus 5. The author tested the model via API and plans to run it locally on a MacBook once the quantized versions are released.

Related event: DeepSeek-V4-Flash-0731 Benchmarks: Matches Top Closed Models at Fraction of Cost(31 posts)→

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