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DeepSeek-V4-Flash-0731 model shows improved image generation with higher reasoning settings

Simon Willison tested the DeepSeek-V4-Flash-0731 model via OpenRouter, finding its default reasoning mode produced a disappointing image of a pelican. However, by increasing the reasoning level to high, the model generated a significantly improved result. AI

IMPACT Demonstrates how adjusting model parameters can significantly impact output quality for generative AI tasks.

RANK_REASON User commentary on a model's performance, not a primary release or research paper.

Read on Bluesky Jetstream — AI desk →

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DeepSeek-V4-Flash-0731 model shows improved image generation with higher reasoning settings

COVERAGE [1]

  1. Bluesky Jetstream — AI desk TIER_1 English(EN) · simonwillison.net ·

    Got a disappointing pelican from DeepSeek-V4-Flash-0731 at default reasoning mode - on the left - but then I bumped reasoning up to high (via OpenRouter) and go

    Got a disappointing pelican from DeepSeek-V4-Flash-0731 at default reasoning mode - on the left - but then I bumped reasoning up to high (via OpenRouter) and got the much better one on the right simonwillison.net/2026/Jul/31/...