gemini computer use vs claude computer use

Gemini computer use vs Claude computer use

This series has compared a dead product to a living tool before. This page is the other kind: both sides exist, both are documented, and both were verified against the vendors' own pages for this comparison on 2026-09-03. The occasion for it is Google's side of the fence settling down. Project Mariner, the consumer experiment, shut down on 4 May 2026, and what remains at Google for builders is exactly what Anthropic has offered all along: a computer use capability in the API, where your code owns the environment and the model supplies the next action. Two vendors, one architecture, real differences in the details.

Disclosure: this page sits on the wiki of AIHawk, an open-source agent in the same category. It appears in exactly one labeled aside near the end and nowhere else. Everything about the two vendors traces to their live documentation, quoted or paraphrased with dates.

One architecture, two dialects

Both tools run the same loop. Your application captures a screenshot and sends it with the task; the model returns an action; your code executes that action against a display you control; a fresh screenshot goes back; repeat until done. Neither vendor hosts the browser or the desktop for you. That is the deal in both cases: the capability is a building block, and the environment, the guardrails and the runtime are yours to build.

The dialects differ in shape. Gemini returns a suggested action as a function call with coordinates normalized to a 0-999 grid that you scale to your actual viewport. Claude's current toolset exposes 17 member tools - screenshot, the click family, drag, scroll, type, key, hold_key, wait, and a zoom action that captures a region at full resolution - with pixel coordinates against the screenshot you sent.

Model lineup and status, as the docs state them

Google. The capability began as a dedicated model: gemini-2.5-computer-use-preview-10-2025, introduced 7 October 2025 and built on Gemini 2.5 Pro. It has since become a tool that mainline models call. The docs today recommend gemini-3.8-flash and list several other Gemini 3-family models, with the 2.5 preview model kept as the legacy entry. Two things worth reading closely: the tool rides current flagship models rather than a frozen specialist, and the docs still carry the caveat that "as a Preview capability, Computer Use may contain errors and security vulnerabilities" - their words, worth pricing in.

Anthropic. The current toolset version is computer_toolset_20260801, which needs no beta header on the Claude API and Google Cloud and is supported by the current model families, including Claude Fable 5.1, Mythos 5.1, Opus 5 and Sonnet 5; some cloud platforms carry it as beta. Older models (the Opus and Sonnet 4.x lines) use the earlier computer_20251124 tool version, which does require a beta header. The toolset is generally available rather than preview.

If you want a one-line status difference: Anthropic's tool has crossed into GA on its home platform; Google's is newer to the tool form and still labels the capability Preview.

Environments each is built for

Google's docs describe three targets: browser control as the primary and most mature case, mobile with Android-optimized behavior including app launching, and desktop via OS-level cursor commands. The original 2.5-era blog was explicit that the model was "primarily optimized for web browsers" and "not yet optimized for desktop OS-level control"; the desktop support has grown since, but the browser-first center of gravity remains visible in the docs.

Anthropic's tool is environment-agnostic by construction: it emits generic display actions, and whatever you can render to a screenshot - a browser in a container, a full desktop VM - is fair game. Anthropic publishes a reference container with a virtual display and browser as a starting point. In practice most deployments of either tool are browser deployments, which is why this page lives in a browser-agent wiki.

Benchmarks, quoted rather than adjudicated

Google's launch material claims leading results for browser control on Online-Mind2Web, WebVoyager and AndroidWorld, and cites 70%+ accuracy at around 225 seconds latency on Browserbase's Online-Mind2Web harness. Anthropic's computer use documentation does not publish a comparable benchmark table on the tool page, so this wiki has no like-for-like number to set beside Google's, and we are not going to manufacture one. Treat each vendor's figures as that vendor's claim on that vendor's chosen harness, and if the decision matters, run both against your own task; an afternoon of real runs beats every table in this category.

Cost mechanics

Both are standard token-priced API calls, and in both the dominant cost is the same: screenshots. Anthropic's docs are usefully concrete here - roughly 1,000 to 1,800 input tokens per screenshot, a stricter per-image limit once a request carries more than 20 images, and for the current toolset a resolution ceiling of 2576 pixels on the long edge. Google's computer use docs do not publish per-screenshot token figures in the same way, so budget by measuring a real session. Either way, a long agentic browse is mostly paying to look at the screen again, and the loop's step count matters more than the per-token rate.

Safety posture

The two postures rhyme. Gemini's tool takes per-category safety configuration - categories such as financial transactions, communication tools and account creation can be set to require explicit user confirmation - and offers prompt injection detection as an opt-in flag. Google's launch material also describes a per-step safety service assessing each proposed action, and lists categories of action the model is trained to refuse outright. Claude's toolset ships prompt injection classifiers that flag suspect content in screenshots and steer the model to ask for confirmation, and the docs recommend dedicated VMs or containers with minimal privileges, domain allowlists, keeping credentials away from the model, and human confirmation for consequential actions.

The practical reading is the same for both: these tools are built to act under supervision inside an environment you have deliberately bounded, and if your plan involves handing one your main browser profile and walking away, neither vendor's design agrees with your plan.

The scorecard

Axis	Gemini computer use	Claude computer use
Status on 2026-09-03	Tool available; capability labeled Preview in docs	Current toolset GA, no beta header on Claude API
Current naming	Computer use tool; gemini-3.8-flash recommended, gemini-2.5-computer-use-preview-10-2025 legacy	computer_toolset_20260801; computer_20251124 for older models
Action encoding	Function call, 0-999 normalized coordinates	17 member tools, pixel coordinates, includes zoom
Environment focus	Browser first; Android-optimized mobile; desktop cursor commands	Whatever you render; reference container published
Published benchmark claims	Online-Mind2Web, WebVoyager, AndroidWorld leadership	None on the tool page
Screenshot cost guidance	Not published per screenshot	~1,000-1,800 tokens each, documented limits
Prompt injection handling	Opt-in detection flag	Classifiers on by design, confirmation steering
Consumer sibling	Gemini Agent; auto browse in Chrome	Claude in Chrome extension

An aside from the maintainers, labeled as such: our project, AIHawk, is not a third column of this table - it is an already-assembled agent rather than an API building block, it drives its own source-patched Firefox, and it can sit under either vendor's models via OpenRouter or an MCP assistant. If you were reading this page because you want the loop without building the loop, that is the shelf it sits on, next to the others surveyed in Open-source computer-use agents. We make it, so audit that claim like everything else here.

Choosing between them

Pick Gemini's tool if your agents already live on Google's stack, your tasks are browser-and-Android shaped, and you want the newest mainline models carrying the capability. Pick Claude's if you want the GA contract, the finer-grained action vocabulary, and documentation that prices its own screenshots. Both choices leave every hard operational question - the environment, the egress, the pacing, what the site sees - on your desk. Those questions have their own pages here: what a page can tell about its visitor and when Claude computer use reads as a bot, which applies nearly unchanged to Gemini-driven environments.

Short answers to the questions that lead here

Which is better, Gemini or Claude computer use? Neither on paper. Google publishes stronger browser benchmark claims; Anthropic ships the GA contract and more operational detail. Run both on your task.

Is Gemini computer use generally available? The tool is available via the Gemini API, AI Studio and Vertex AI, and the docs still label Computer Use a Preview capability. Anthropic's current toolset is GA on the Claude API.

What model do I use for Gemini computer use? The docs recommend gemini-3.8-flash today; gemini-2.5-computer-use-preview-10-2025 is the legacy dedicated model.

Do these replace Project Mariner or Operator? They are the developer halves that outlived both consumer products; the consumer replacements are covered on Project Mariner is gone and Is OpenAI Operator still available?.

Can either drive my real browser? They emit actions; what gets driven is whatever environment you provide. The vendors' consumer siblings (auto browse in Chrome, Claude in Chrome) are the drive-your-own-browser products.

Do they solve captchas or guarantee access to sites? No. Both vendors' safety material points the opposite direction, and sites remain free to challenge any visitor.

See also: OpenAI Operator vs Claude computer use for the earlier chapter of this series, Project Mariner is gone: what replaced it for Google's consumer arc, and Open-source computer-use agents for the pre-assembled open versions of this loop.

Sources

• Gemini API: Computer use documentation, fetched 2026-09-03: model naming and recommendations, the action loop, normalized coordinates, environment support, safety categories, the opt-in prompt injection flag, and the Preview caveat quoted above.
• Google: Introducing the Gemini 2.5 Computer Use model, fetched 2026-09-03: the 7 October 2025 introduction, benchmark claims, the Browserbase harness figure, the browser-first optimization quotes, and the per-step safety service.
• Anthropic: Computer use tool documentation, fetched 2026-09-03: toolset versions, model support and beta-header rules, the 17 member tools, screenshot token figures and image limits, prompt injection classifiers, and the security recommendations.
• TechSpot on the Project Mariner shutdown, fetched 2026-09-03, for the 4 May 2026 date.
• Anthropic: Claude in Chrome general availability, surfaced via search 2026-09-03, for the consumer-sibling row.

---

Refereed by the maintainers of AIHawk, an open-source agent that competes with both tools compared here. Our one paragraph is labeled; the rest is the vendors' own documentation, cited so you can check our whistle-blowing against the rulebook.