DeepSeek V4 Flash Vision Is INSANE – Tested With DeepSeek Harness!
Source
Bijan Bowen
Author
Bijan Bowen
Date
Terms in this piece · Glossary
agent harness — The scaffolding around a model that turns it into a working agent — the loop, the tools it can call, and the rules for when to stop.
tool use — A model's ability to call external functions — run code, search the web, edit files — instead of only generating text.
Why it matters
Shows how DeepSeek V4 Flash Vision behaves on multi-step creative and coding tool useA model's ability to call external functions — run code, search the web, edit files — instead of only generating text.Full definition → inside DeepSeek's own agent harnessThe scaffolding around a model that turns it into a working agent — the loop, the tools it can call, and the rules for when to stop.Full definition → — the setting where an open model would replace a frontier API.
