# deepseek-ai/DeepSeek-V4-Flash-0731

> Source: <https://simonwillison.net/2026/Jul/31/deepseek-v4-flash-0731/#atom-everything>
> Published: 2026-07-31 23:59:44+00:00

[deepseek-ai/DeepSeek-V4-Flash-0731](https://huggingface.co/deepseek-ai/DeepSeek-V4-Flash-0731)

Artificial Analysis [rank it](https://artificialanalysis.ai/models/deepseek-v4-flash) ahead of MiniMax M3 - a 428B model. It's $0.14/million input and $0.27/million output pricing means this may currently be the best value-per-intelligence model out there. It's looking very good on the [Intelligence Index vs. Cost per Intelligence Index Task](https://artificialanalysis.ai/models/deepseek-v4-flash#intelligence-comparison-tabs) chart:

I got [a disappointing pelican](https://gist.github.com/simonw/83bfb1171792f1e7a4d8935b5e82317e#prompt) from it using the default reasoning level via OpenRouter:

But when I bumped reasoning level up to high I got [something much better](https://gist.github.com/simonw/83bfb1171792f1e7a4d8935b5e82317e#options):

`llm -m openrouter/deepseek/deepseek-v4-flash-0731 -t pelican -o reasoning_effort high`

Via [Hacker News](https://news.ycombinator.com/item?id=49120299)

Tags: [ai](https://simonwillison.net/tags/ai), [generative-ai](https://simonwillison.net/tags/generative-ai), [llms](https://simonwillison.net/tags/llms), [pelican-riding-a-bicycle](https://simonwillison.net/tags/pelican-riding-a-bicycle), [deepseek](https://simonwillison.net/tags/deepseek), [llm-release](https://simonwillison.net/tags/llm-release), [openrouter](https://simonwillison.net/tags/openrouter), [ai-in-china](https://simonwillison.net/tags/ai-in-china), [artificial-analysis](https://simonwillison.net/tags/artificial-analysis)