fx0
Free, open-source mini v0 from Vercel. It turns a chat prompt into a single-file HTML page or prototype.
What's new · October 20, 2026Released Oct 19, 2026. fx0 is a free, open-source mini v0 from Vercel that turns a chat prompt into a single-file HTML page or prototype. It is built on Vercel's libfx durable agent runtime, uses 200+ models via Vercel AI Gateway, saves sessions step by step, and lets you fork chats. Agent test pending.Source
No affiliate link on file. Outbound goes to fx0.vercel.dev. Identity checked October 20, 2026. Scores were not part of that check.
Verdict
Pending agent test
Use-it-for, skip-if, and the one-line verdict publish with the test log. This page will not guess them.
- Use it for
- Not assigned
- Skip it if
- Not assigned
- Tier
- Unranked
Scores
One 0–10 score from the logged run, plus the rubric underneath. All unset.
Run score
—
out of 10 · Pending agent test
- OutputNot scored
- SpeedNot scored
- CostNot scored
- ReliabilityNot scored
Pros and cons
Pros
Pending agent test. Nothing is listed until a run is logged.
Cons
Pending agent test. Nothing is listed until a run is logged.
Best for
Not a tested recommendation. These are the jobs this tool is filed under.
Test log
No run on file.
- Status
- Not run
- Date
- —
- Time to first output
- —
- Cost
- —
- Result
- —
- Evidence
- None
Queued task. Ship a small feature in a fixture repo. Log time to a working diff, cost, and failures.
FAQ
What is the agent-tested verdict for fx0?
Pending agent test. fx0 is in the catalog with its official URL, category, and pricing model. No score, pros, cons, or tier have been published.
How much does fx0 cost?
The pricing model on file is Open source. A dollar price is not stored until someone checks the vendor page again.
Do sponsors outrank this tool?
No. A sponsored slot is labeled and sold separately from tiers. It cannot move this listing.