Managed infra, agents, and data for experimenting with agents as users
Run unbiased simulations at scale to understand how coding agents use and discover products
Goldsky
- taubyte
Infra and tools to run simulations on your laptop or scale to the cloud
Define your experiment, lay out your tests, pick your agent, then let us do the work of managing infra and data.
Learn moreRemote or local runs
Run locally for free, or automatically parallelize runs at massive scale on managed infrastructure with AX Cloud.
Unbiased simulations
Every run starts from a clean, isolated sandbox, with your custom setup. No bias. No context pollution. No cheating.
Any agent, any model
Test with Claude, Codex, Cursor, and more. Bring your own LLM keys, or use our managed agents at market prices.
Understand every journey agents take through your product
Agent transcripts, sandbox data, timelines and comparisons turn every simulated session into evidence you can inspect and share.
Learn moreFull data capture
Agent transcripts, OTEL logs, errors, commands: everything in the system recorded, versioned, and warehoused for analysis.
Compare variants side by side
See how success rate, cost, and wall-clock time shift between versions of your product.
Sandbox snapshots
Retain the full sandbox end state (file system and memory) and resume for further analysis at any time.
Turn evidence into product and marketing decisions
Ship code, docs, and content that are proven to make your product more discoverable and usable by agents.
Learn moreResults in your pull requests
Experiment summaries land on the PR, so the evidence arrives before you merge.
Gate releases on agent tests
Treat agent task success like CI: block regressions before they ship.
Track improvement over time
Watch success rates climb as you remove the friction agents hit.
Get started
Start your first experiment in minutes, and uncover how coding agents interact with your product
Use anywhere. Embed into your workflows, go-to-market pipeline or products
Actionable GEO
Learn if your tool is mentioned or selected by agents, and why. Test in realistic contexts, with code, MCPs, skills, tools and running applications.
Built for humans. Rebuilt for agents.
Sep 2023
Founded on developer experience
514 starts out building data infra and tooling for human engineers.
Jan 2025
Agents as primary users
Coding agents become the majority users of our dev tools.
Oct 2025
Optimizing our AX
Internal platform to systematically measure and improve our agent experience.
Jul 2026
Launch AX Cloud
The tools we built to help serve agentic users, available for all
Agents are your new users. Learn from them.
Read our Manifesto“The very first experiment we did with 514 turned up gaps in our CLI that were tripping up agents as they tried to build with Mux. After an immediate fix, we were able to reduce tool call failure by 34%.”
taubyteHonored to help those building incredible dev tools and honing them for agents