@hyperbrowser
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Browser infra for your AI Agents
San Francisco, CA
Joined December 2024
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Meet Hyperbrowser, the browser infrastructure for AI Agents.
We're a cloud browser platform for running automated browser sessions at scale.
A quiet upgrade to your stack that finally lets your app work with the web the way it should.
Opus 5.5 is now available on Hyperbrowser 🚀
It handles most tasks as well as Fable 5.1, while costing about 40% less than Opus 5 on typical workloads
Give it a task and watch it use the browser
Try it now in our AI Agents Playground 👇
Opus 5 is now available in Hyperbrowser.
It comes close to Fable 5's intelligence at half the price, and that it verifies its own work and keeps iterating until it succeeds.
We paired that with stealth browsers and residential proxies.
Just got scary good↓
Then the three newest browser agent papers on arXiv, each one confirmed on its own abstract page instead of trusting the search listing.
17 steps, 256k tokens.
The infrastructure underneath all of it:
hyperbrowser.ai
We had one Kimi K3 browse 30 pages at once, on Hyperbrowser.
Browserswarm spins up a swarm of cloud browsers that read the web in parallel and stream every page into a single shared context. One brain, many eyes.
428k tokens into one window, zero failures, one cited answer in just a few minutes.
Open-source code here: github.com/hyperbrowserai/hy… [/browserswarm]
Gemini 3.5 Flash-Lite is cheap and genuinely capable at computer use. Google's most affordable model.
A computer-use model is only as good as the browser you give it. It's now live on Hyperbrowser:
Stealth, proxies, captcha solving, and a live view you watch it work through. The perception is cheap now, we gave it the environment.
We benchmarked GPT-5.6 Sol (high), Grok 4.5 (high), and Claude Fable 5 on 24 browser tasks, run on Hyperbrowser with an identical harness,
3 trials per task.
Fable 5 led overall at 78%, Sol 75%, Grok 4.5 69% and each specialized: Fable was perfect on reading, Sol was best at navigation (94%), and Fable led on forms and logins (89%).
Full task set and harness are open source. The breakdown below ↓
Task list, harness, and raw results are open source: github.com/hyperbrowserai/ex…
Want to run your own agents on the same infra? Start free: hyperbrowser.ai
Fable cost 6x more per completed task than Grok ($0.06 vs $0.01).
Sol sat in the middle.
Setup: live websites, one system prompt, one action space, no per-model tuning. Fresh cloud browser per trial, interleaved so no model saw a different web.
Environment and API failures were tagged separately and excluded from model scores.
Hyperbrowser retweeted
We put grok 4.5 and opus 4.8 head to head on the same browser task, on Hyperbrowser Sandboxes.
We then asked it to open a page in a real sandboxed browser and pull the title. Grok build on Grok 4.5, Claude code on Opus 4.8, identical setup.
Grok 4.5 came out ahead ↓
GPT-5.6 sol is insane when paired with cloud browsers.
Sol, Terra and Luna are now available on Hyperbrowser.
Openai's most capable models yet, running computer use tasks on cloud browsers and sandboxes.
here's how it performs ↓
Try gpt-5.6 sol and the rest of the family on Hyperbrowser:
app.hyperbrowser.ai/playgrou…
Learn more about Hyperbrowser: hyperbrowser.ai