Side-by-side comparison · Coding & Dev Tools
Claude Code vs Google Antigravity vs OpenCode
Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.
Comparing 3 tools, the maximum.
At a glance
Pick it if: Anyone building software, from first-timers to senior engineers, who wants an AI that does the work itself.
Pick it if: Google AI Pro subscribers, and anyone who wants to try handing coding work to AI agents for free.
Pick it if: Developers and tinkerers who want a capable coding agent without a big subscription, or who want to choose their own models.
Claude Code scores highest overall, but OpenCode gives you more for your money. Which one is right comes down to what you value most.
Overview
| Attribute | Claude Code | Google Antigravity | OpenCode |
|---|---|---|---|
| In one line | An AI agent that works inside your project: it reads, writes and runs the code for you. | Google's free coding app. You hand tasks to AI agents and review what they produce. | A free, open-source coding agent that works with almost any AI model, including free ones. |
| Pricing model | Paid | Freemium | Open source |
| Starting price | $20/mo | $19.99/mo | Pay as you go |
| Free plan | No | Yes | Yes |
| Works with Claude Code | Yes | No | Yes |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | Claude Code | Google Antigravity | OpenCode |
|---|---|---|---|
| Overall rating | 4.4Winner | 3.9 | 3.8 |
| Ease of useHow quickly someone non-technical gets value from it. | 3.5 | 3.5 | 3.0 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 5.0 | 4.0 | 4.5 |
| Output qualityHow good the results are before you fix them. | 5.0 | 4.0 | 3.5 |
| Value for moneyWhat you get for the price, including the free plan. | 4.0 | 4.5 | 5.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 4.5 | 3.5 | 3.0 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | Claude Code | Google Antigravity | OpenCode |
|---|---|---|---|
| Access & platform | |||
| Free plan | No | Yes | Yes |
| Mobile app | Yes | No | No |
| Desktop app | Yes | Yes | Yes |
| Browser extension | No | Yes | No |
| API access | Yes | Yes | Yes |
| Teams & business | |||
| Team workspace | Yes | Yes | No |
| Enterprise plan or SSO | Yes | Yes | Yes |
| Connects to other apps | Yes | Yes | Yes |
| Open source or self-hosted | No | No | Yes |
| AI abilities | |||
| Works with your files | Yes | Yes | Yes |
| Understands images | Yes | Yes | Yes |
| Makes images | No | Yes | No |
| Makes video | No | No | No |
| Writes code | Yes | Yes | Yes |
| Runs agents or automations | Yes | Yes | Yes |
| Learns your brand or style | Yes | Yes | – |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 12/ 17 | 14/ 17 | 11/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Claude Code | Google Antigravity | OpenCode |
|---|---|---|---|
| Plans | ProOur pick $20/mo, or $17/mo billed yearly Trying Claude Code and light daily use. | IndividualOur pick Free Trying agent-based coding without paying. | OpenCode Free Anyone with their own model access, or happy with the free models. |
Team From $20/seat/mo billed yearly, or $25 monthly Businesses with 2 to 150 people who want central billing. | Google AI Pro $19.99/mo People who already have or want the Google AI Pro bundle. | Zen Pay as you go, from a $20 top-up People who want top models without a subscription. | |
Enterprise $20/seat/mo billed yearly, 20-seat minimum Larger companies with compliance needs. | Google AI Ultra From $99.99/mo Developers who want Antigravity as a daily driver. | GoOur pick $10/mo Most people who want to code daily on a budget. | |
Max From $100/mo Anyone running Claude Code for hours a day. | Business (via Google Cloud) From $30/seat/mo Companies already on Google Cloud. | Go Plus $40/mo Heavy users who hit the Go limits. | |
API (pay as you go) Usage based Teams who want to pay only for what they use. | Enterprise Custom Companies rolling it out to a team. | ||
| Which plan to pick | Start on Pro. It is enough to build a small site or tool in evenings and weekends. If you hit the limit most days, Max 5x is the next step; it costs five times as much but usually works out cheaper than paying for the API directly. Max also lets you spend up to half your weekly limit on Fable, which Pro only gets through paid credits. | Start on the free Individual tier; it is the whole point. If you hit the weekly limits and you also use Gemini for other things, Google AI Pro at $19.99 is a sensible step. Ultra only makes sense for full-time developers. | Start free. If the free models feel thin, OpenCode Go at $10 a month is the best-value upgrade in this category. Only add Zen or a Claude or OpenAI API key when you need a frontier model for a hard job, and set a spending cap when you do. |
Key features
| Attribute | Claude Code | Google Antigravity | OpenCode |
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Pros and cons
| Attribute | Claude Code | Google Antigravity | OpenCode |
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Who each one is for
| Attribute | Claude Code | Google Antigravity | OpenCode |
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Questions people ask
Which is better, Claude Code, Google Antigravity or OpenCode?
Claude Code scores highest overall in our ratings (Claude Code 4.4/5, Google Antigravity 3.9/5 and OpenCode 3.8/5). Claude Code is best for building features end to end and fixing bugs you can't find. Google Antigravity is best for Trying AI coding agents for free and running several agents at once. OpenCode is best for coding with free or low-cost models and using any AI provider, including local models.
Which is cheaper, Claude Code, Google Antigravity or OpenCode?
Claude Code: There's no free plan. Paid plans start at $20/mo. Google Antigravity: There's a free plan, and paid plans start at $19.99/mo. OpenCode: There's a free plan, and paid plans start at Pay as you go.
How we compare
Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.
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