Agentic harness comparison
Claude Code vs Antigravity
Compared on where each one runs, which editors it supports, how autonomous it is, and how it bills — the four things that actually decide Claude Code vs Antigravity. Rankings reflect fit and trade-offs, not a single universal winner; partner links, when present, do not replace that methodology.
Details last verified September 26, 2026
Anthropic
Claude Code
Terminal, IDE plugins, desktop, and browser · Agentic
Antigravity
Own IDE, CLI, and IDE extensions · Agentic
| Specification | Claude Code | Antigravity |
|---|---|---|
| Vendor | ||
| Vendor | Anthropic | |
| Runs in | ||
| Runs in | Terminal, IDE plugins, desktop, and browser | Own IDE, CLI, and IDE extensions |
| Editor support | ||
| Editor support | Terminal CLI, VS Code / Cursor, JetBrains, Desktop app, claude.ai/code | Antigravity IDE, VS Code, JetBrains, Zed, Visual Studio 2026, Antigravity CLI, Desktop app |
| Autonomy | ||
| Autonomy | Agentic | Agentic |
| Pricing model | ||
| Pricing model | Hybrid | Hybrid |
| Requires changing editor | ||
| Requires changing editor | Winner: No | Yes |
Benchmark scores carry the month they were measured. Values we could not confirm are shown as “Not verified” rather than estimated.
Claude Code
Anthropic's agentic coding tool that runs in the terminal, IDE plugins, a desktop app, and the browser at claude.ai/code, all sharing one config and one subscription. It is billed either through a Claude plan (Pro / Max / Team / Enterprise) or via Anthropic Console / API pay-as-you-go.
Best for
- Multi-file refactors
- Migrations
- Delegated engineering tasks
Watch out
Claude Code is included in every paid Claude plan (Free does not include it) and shares the plan's usage allowance with Claude chat; an ANTHROPIC_API_KEY can bill API credits instead. Pro is $20/mo (about $17/mo annual), Max 5x $100/mo, Max 20x $200/mo; Team Standard is $25/seat/mo ($20 annual) and Team Premium $125/seat/mo ($100 annual), while Enterprise is $20/seat plus API-rate usage (sources: claude.com/pricing; support.claude.com help center; re-checked 2026-09-26). Claude Code's `default` model is now Claude Opus 5.5 (launched 2026-09-22) on Pro, Max, Team, Enterprise and the Anthropic API — it needs v2.1.280 or later (code.claude.com/docs/en/model-config). Neither Fable model is the account default on any plan; the `fable` alias resolves to Claude Fable 5.1 (cache reads $0.25/MTok). On Pro, Fable bills from usage credits; on Max it counts at 50% of weekly limits. Limits reset on a rolling 5-hour window plus a weekly cap, so size heavy agent loops against that, not a flat monthly message count.
Antigravity
Google's agent-first IDE built natively around Gemini, with IDE extensions for VS Code/JetBrains/Zed, Antigravity CLI (Google's replacement for consumer Gemini CLI since 2026-06-18), a desktop app, and coordinated multi-agent workspaces — generally available with a $0 Individual plan, and bundled into Gemini Enterprise.
Best for
- Agent-first workflows
- Individuals moving off consumer Gemini CLI (Antigravity CLI)
- Multi-agent coordination across editor + terminal + browser
Watch out
Generally Available (verified 2026-09-26, antigravity.google/pricing): the Individual plan is $0 with Gemini 3.8/3.7/3.6 Flash, Gemini 3.1 Pro, Claude Sonnet and Opus 4.6 and gpt-oss-120b under basic weekly limits; Google AI Pro and Ultra add higher limits and a flexible credit pool; an organisation plan comes through Google Cloud and Gemini Enterprise (bundled into Gemini Enterprise Standard/Plus since 2026-08-20). Antigravity CLI (command `agy`) is Google's official successor to consumer Gemini CLI: written in Go, it runs multiple agents, uses plugins in place of extensions, runs on macOS, Linux and Windows, and signs in through the browser (a Gemini API key works only with `modelProvider` set to gemini in settings.json) (antigravity.google/docs/cli and the developers.googleblog.com transition post). Gemini 3.8 Flash rolled out across Antigravity surfaces around 2026-09-01. Model-agnostic routing to Claude/GPT-OSS also available. One secondary source cites 76.2% SWE-bench Verified — unconfirmed by Google, treat as indicative. Adopting the IDE means a tool switch; extensions soften that for VS Code/JetBrains/Zed users.
Common questions
Claude Code vs Antigravity
Answered from the verified figures on this page rather than general guidance.
Do I have to change editor to use Claude Code or Antigravity?
How are Claude Code and Antigravity priced?
Is Claude Code or Antigravity better for large refactors?
Should I run Claude Code and Antigravity together?
Will my project rules transfer between Claude Code and Antigravity?
Does Claude Code require a Max plan?
Do coding agents replace code review?
Should we harden MCP before rolling out a coding agent?
Next step
Which one fits
Autonomy and editor constraints decide this far more reliably than a benchmark score.
If most of your week is small, frequent edits, an assistive workflow beats delegation and an agentic harness sits idle while billing. If you regularly hand over work spanning many files, the reverse is true.
Where one tool requires changing editor and the other does not, that difference usually outweighs any capability gap across a team — rollouts fail on adoption, not capability.
“Open vendor” links use a first-party redirect for click counting. They are not commissionable partner placements unless a programme is active for that vendor. Affiliate disclosure.