Google Antigravity vs Kilo Code: Coding Agents Comparison
Compare Google Antigravity and Kilo Code side by side. Both are tools in the Coding Agents category.
Updated April 29, 2026
The short answer
Choose Google Antigravity if free during preview phase with access to cutting-edge Gemini 3 models.
Choose Kilo Code if most-used open-source coding agent (1.5M+ users, #1 on OpenRouter).
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Quick Comparison
| Category | Coding Agents | Coding Agents |
| Pricing | — | Free + paid credits (BYOK, zero markup) |
| Best For | — | Developers and teams who want an open-source coding agent in their existing IDE, with full model freedom and no API markup |
| Website | developers.googleblog.com | kilo.ai |
| Key Features | — |
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| Use Cases | — |
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Pros & Cons: Google Antigravity vs Kilo Code
- +Free during preview phase with access to cutting-edge Gemini 3 models
- +Impressive 76.2% score on SWE-bench Verified demonstrates strong capabilities
- +Multi-agent orchestration enables complex parallel workflows across editor, terminal, and browser
- +Support for third-party models like Claude provides flexibility beyond Google's ecosystem
- −Preview status means features and pricing are subject to change
- −Rate limits on free tier can be restrictive for heavy users
- −AI Ultra pricing at $250/month is steep for individual developers
- −Limited to personal Gmail accounts currently, no enterprise offerings yet
- +Most-used open-source coding agent (1.5M+ users, #1 on OpenRouter)
- +Zero markup — pays Anthropic/OpenAI/Google list price
- +Orchestrator routes complex work to specialist sub-agents
- +500+ models across 60+ providers, including local
- +BYOK credits never expire
- −Newer than incumbents like GitHub Copilot — fewer enterprise references
- −Quality is bounded by your chosen model and prompt
- −Community support rather than dedicated enterprise SLAs
- −Orchestrator workflows have a learning curve to configure
Pricing: Google Antigravity vs Kilo Code
- · Full access during preview
- · Gemini 3 models
- · Browser orchestration
- · Multi-agent workflows
- · Higher rate limits
- · Rate limits refresh every 5 hours
- · Claude Opus 4.6 access
- · Priority support
- · Highest rate limits
- · Reliable daily Claude Opus 4.6 access
- · Premium support
- · Production-grade limits
- · Open-source extension for VS Code, JetBrains, and CLI
- · $20 in starter credits
- · Bring your own API key
- · All core agent + autocomplete features
- · Up to ~$26.60/mo in model credits
- · Annual billing gives 50% bonus credits
- · Up to ~$68.60/mo in model credits
- · Best for daily heavy users
- · Up to ~$278.60/mo in model credits
- · Power user / agent-heavy workflows
- · Usage analytics + AI adoption score
- · Shared agent modes and BYOK
- · Centralized billing, team management
- · Data privacy controls + priority support
- · Limit allowed models / providers
- · Shared private gateway BYOK
- · Audit logs, SSO, OIDC, SCIM
- · SLA commitments + dedicated support
What people are saying
Curated quotes from Hacker News, Reddit, Product Hunt, and review blogs. Dates shown so you can judge whether early criticism still applies.
- +
“Brilliant coding assistant — works great for both VS Code and JetBrains IDEs with access to many providers.”
— Game Developer, Product Hunt - +
“The model switching UI is the clearest advantage over Cline — swapping models takes two clicks.”
— OpenAIToolsHub, Hands-on review · Mar 2026 - +
“On VS Code, this is the best AI coding extension by far — it blends Cline and Roo Code with better UX and reliability.”
— PrimeAI Center review, PrimeAI Center · Mar 2026 - ·
“Sometimes stuck in loops — not sure if it's the LLM or the prompt's problem.”
— Solo developer, Product Hunt - −
“My biggest complaint is no ability to use it within Zed.”
— JetBrains user, Reddit/community
When to Choose Google Antigravity vs Kilo Code
- Orchestrated multi-step refactors across an existing codebase
- Cost-conscious AI coding via BYOK with zero provider markup
- Multi-IDE team standardization across VS Code and JetBrains
How to Choose a Coding Agents Tool
Key criteria to evaluate when comparing Coding Agents solutions:
About Google Antigravity
Google Antigravity is Google's agentic development platform, announced alongside Gemini 3 in late 2025. Built as a modified VS Code fork, Antigravity combines a traditional AI-powered editor with a Manager View for orchestrating multiple autonomous agents working in parallel across workspaces. Agents can plan, execute, and verify complex tasks across editor, terminal, and browser environments. The platform achieved 76.2% on the SWE-bench Verified benchmark, demonstrating strong code generation capabilities. Antigravity supports Gemini 3 Pro, Deep Think, and Flash models, plus third-party models including Claude, making it flexible for developers who want to use different AI providers. Currently available in preview for personal Gmail accounts on Mac, Windows, and Linux, Antigravity is free during the preview phase but expected to introduce paid tiers. Google AI Pro subscribers ($20/month) and AI Ultra subscribers ($250/month) receive higher rate limits, with rate limits refreshing every 5 hours for Pro users.
About Kilo Code
Kilo Code is an open-source AI coding agent that runs as an extension in VS Code, JetBrains IDEs, and as a standalone CLI. It was forked from Cline and Roo Code in 2024 and now serves 1.5M+ developers, ranking as the most-used open-source coding agent extension.
Kilo's standout feature is Orchestrator mode, which decomposes complex tasks into subtasks and routes them to specialist sub-agents — Architect for planning, Coder for implementation, and Debugger for testing and fixes. It also provides inline autocomplete, browser automation, automated refactoring, and connects to 500+ models across 60+ providers (Anthropic, OpenAI, Google, Mistral, local Ollama, OpenRouter).
Pricing is BYO API key with zero markup — Kilo charges the exact list price of Anthropic, OpenAI, and Google. Optional Kilo Pass credit subscriptions start at $19/mo, with Teams at $15/user/mo. Co-founded by GitLab co-founder Sid Sijbrandij; raised $8M in seed funding (December 2025) led by Cota Capital with participation from General Catalyst, Breakers, Quiet Capital, and Tokyo Black.
What is Coding Agents?
AI-powered developer tools that can write, review, debug, and refactor code—ranging from IDE copilots to fully autonomous software engineering agents.
Browse all Coding Agentstools →Frequently Asked Questions
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