Codex CLI vs Google Antigravity

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Data last refreshed August 2026

Codex CLI

OpenAI

Lightweight coding agent that runs in your terminal

Open Source

85% verification coverage

Google Antigravity

Google

Experience liftoff with the next-gen agent platform

Freemium

78% verification coverage

Trust & Reliability

Codex CLI

Uptime:99.95%Status page

Users:1M-10M

Customers (per vendor):NVIDIA, HeyGen, Cisco +7

GDPR

SOC 2

Google Antigravity

Customers (per vendor):AirAsia, Accenture, CGI +1

Overall Winner: Codex CLI

6.2/10 vs Google Antigravity at 4.3/10

Leads in:

Customization

Performance

Support

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

AI Comparison Summary

Codex CLI

6.2

avg score

Google Antigravity

4.3

avg score

Codex CLI leads overall — particularly in Support and Compliance & Data Protection and 1 more.

Based on 6 dimensions

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Overall Winner

Codex CLI

6.2 / 10

Codex CLI

Best For

Developers who want an AI coding agent that runs locally in their terminal

Teams already on a ChatGPT Business or Enterprise plan wanting agentic coding included

Developers working in VS Code, Cursor or Windsurf who want the same agent in their IDE

Google Antigravity

Best For

Developers building agent-first applications

Fullstack developers creating production-ready applications

Enterprise developers needing secure, scalable agentic workflows

Frontend developers streamlining UX with browser-in-the-loop agents

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Codex CLI is best for

✍️Writing & Content9.0💬Chat & Conversation9.0🔍Research8.0

Google Antigravity is best for

✍️Writing & Content9.0💬Chat & Conversation9.0🔍Research8.0

Filter by your use case:

Limitations

Codex CLI

Cons

Requires a paid ChatGPT plan (Plus, Pro, Business, Edu or Enterprise) or an API key to use
Usage limits are governed by the underlying ChatGPT plan, not by the CLI itself
Support is via the open-source GitHub repository and the OpenAI help centre

Google Antigravity

Cons

Not available in all countries and territories
Third-party software access (e.g., Claude Code) is a Terms of Service violation for consumer plans
Wrapping CLI headless mode in third-party coding agents is not supported under consumer plans
Cannot use third-party software with Antigravity login
Enterprise plans are rolling out to select customers

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Customization5

Support5

Integration5

Compliance & Data Protection5

Performance5

Planning Quality5

Dimension Comparison

Codex CLI

6.2

/ 10

Clear winner

Google Antigravity

4.3

/ 10

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Codex CLI

3.0

Google Antigravity

3.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Codex CLI

8.0▲ +1.0

Google Antigravity

7.0

Support

How strong is the documentation, customer support, community, and learning resources?

Codex CLI

7.0▲ +2.0

Google Antigravity

5.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Codex CLI

5.0▲ +1.0

Google Antigravity

4.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, counted from ten verified signals: SOC 2 Type II, GDPR compliance, HIPAA, WCAG AA/AAA, PII redaction, licensed-only training, a published sub-processor list, a downloadable DPA, not training on user data, and a documented deletion path

Codex CLI

6.0▲ +4.0

Google Antigravity

2.0

Performance

Calculated

Latency + throughput speed

Codex CLI

8.0▲ +3.0

Google Antigravity

5.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Codex CLI

—

Google Antigravity

—

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Codex CLI

Task

Google Antigravity

5.0

Code Completion

9.0

8.0

Bug Detection

7.0

8.0

Code Explanation

8.0

Refactoring

8.0

Test Generation

8.0

Multi Language Support

8.0

9.0

Context Understanding

9.0

6.0

Documentation Generation

6.0

Performance Optimization

5.0

7.0

Security Scanning

4.0

3.0

Api Management

3.0

8.0

Ci Cd Integration

6.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

What are the main differences between Codex CLI and Google Antigravity?

Codex CLI — "Lightweight coding agent that runs in your terminal". Google Antigravity — "Experience liftoff with the next-gen agent platform". The Features section on this page compares them side by side.

Who is Codex CLI best for compared with Google Antigravity?

Codex CLI is best for Developers who want an AI coding agent that runs locally in their terminal; and for Teams already on a ChatGPT Business or Enterprise plan wanting agentic coding included. Google Antigravity is best for Developers building agent-first applications; and for Fullstack developers creating production-ready applications.

How does the pricing of Codex CLI compare with Google Antigravity?

Codex CLI is open source, includes a free plan, paid plans start at $8/month. Google Antigravity is freemium, includes a free plan. Always verify current pricing with the vendor.

Does Codex CLI or Google Antigravity have a free plan?

Codex CLI is open source. Google Antigravity has a free plan. Always verify current pricing with the vendor.

Do Codex CLI and Google Antigravity offer an API?

Codex CLI offers a public API. Google Antigravity offers API access on its enterprise plans.

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