{"slug":"kernel","name":"Kernel","domain":"kernel.sh","verdict":"As of 2026-08-10, ChatGPT, Claude, Gemini, Grok collectively rank Kernel #3 of 7 for hosted browser infrastructure for agents using authenticated websites. Source: https://modelsagree.com/product/kernel (modelsagree.com, CC BY 4.0).","best_rank":3,"categories":1,"entries":[{"slug":"best-hosted-browser-infrastructure-for-agents-using-authenticated-websites","title":"Best hosted browser infrastructure for agents using authenticated websites","rank":3,"of":7,"score":12,"appearances":4,"modelRanks":{"ChatGPT":1,"Claude":5,"Gemini":3,"Grok":3},"reason":"Best authentication stack: persistent profiles, automated re-authentication, 1Password, SSO/OAuth, MFA, encrypted credentials, isolated VMs, stealth, and human handoff. Usage pricing and standby mode suit intermittent agents.","reasons":[{"model":"ChatGPT","reason":"Best authentication stack: persistent profiles, automated re-authentication, 1Password, SSO/OAuth, MFA, encrypted credentials, isolated VMs, stealth, and human handoff. Usage pricing and standby mode suit intermittent agents."},{"model":"Gemini","reason":"Micro-VM unikernel architecture delivering sub-second cold starts, isolate-level credential security, and deep integration into enterprise agent runtime environments. (Assumes agent workloads require low-latency execution and strict enterprise isolation)."},{"model":"Grok","reason":"Managed Auth handles credential discovery, form fill, SSO, and TOTP (including 1Password) automatically while keeping secrets out of the agent; Profiles + up-to-72h sessions with standby/snapshots support long-lived authenticated workflows; headful browsers + MP4 replay give strong observability; unikernel isolation keeps costs low on intermittent use."},{"model":"Claude","reason":"Newer agent-first browser infrastructure with persistent browser sessions, replay/observability, and an API shaped around long-running autonomous agents rather than short scrape jobs — a good fit for agents that must hold an authenticated session over time."}],"fixes":[{"model":"ChatGPT","fix":"Fully proprietary; sensitive identity workflows become dependent on Kernel’s control plane."},{"model":"Claude","fix":"Least proven of the five with a thinner track record and smaller community; near-tie with Steel for slot 3–5 and the riskier bet if you need stability today."},{"model":"Gemini","fix":"Premium enterprise pricing structure and steeper setup curve compared to lightweight headless browser APIs."},{"model":"Grok","fix":"Full value requires buying into their app/runtime model; newer platform with narrower public adoption and fewer third-party integrations than Browserbase or Steel."}],"updated":"2026-08-10","rank_history":{"days":["2026-08-03","2026-08-10"],"ranks":[4,3]},"api":"https://modelsagree.com/api/v1/best/best-hosted-browser-infrastructure-for-agents-using-authenticated-websites.json"}],"page":"https://modelsagree.com/product/kernel","check":"https://modelsagree.com/check?q=Kernel","updated":"2026-08-10T18:18:45.051Z","attribution":"modelsagree.com, CC BY 4.0"}