English · 6 min read
AI coding agent plans compared: every plan and price, with the date we checked
One table of the plans and prices for the main AI coding agents: Devin, OpenCode, Command Code, DeepSeek Harness, Pi, Oh My Pi, Claude Code, ZCode and Antigravity. Each price carries the date we checked it and a link to the vendor's own page.
By Dapols ·
The short answer: the cheapest way into AI coding agents is a free, open-source tool (DeepSeek Harness, Pi, Oh My Pi, or OpenCode with its free models) where you pay only for the AI model you connect. Paid plans run from $1 a month (Command Code Go) and $10 (OpenCode Go) up to $200 a month for one person (Devin Max, Command Code Max 20x). Heavy use can cost more than the sticker price on several of them, so read the "what to watch" column.
This is a plain-language summary for people who are not developers. A coding agent is an app that lets an AI model read, change and test the files in a project. We list each price with the date we last checked it and a link to the vendor's own page. Vendors change prices often. Confirm on the vendor page before you pay. A price we could not find is written NOT PUBLISHED.
The plans, side by side
| Tool | Plan | Price | Checked | What to watch | Vendor page |
|---|---|---|---|---|---|
| DeepSeek Harness | The app (MIT licence) | Free; you pay the model provider | 11 November 2026 | Developer preview; DeepSeek's own API is cheaper off-peak | DeepSeek prices |
| Pi | The app (MIT licence) | Free; you pay the model provider. A paid Pi plan: NOT PUBLISHED | 11 November 2026 | No built-in permission system | pi.dev |
| Oh My Pi | The app (MIT licence) | Free; you pay the model provider | 2 September 2026 (older than the rest) | Community project, no support contract | Repository |
| OpenCode | Free models | $0, no account needed | 11 November 2026 | Daily request limit on free models | opencode.ai |
| OpenCode | Go | $10 per month | 11 November 2026 | Allowances differ by model | opencode.ai/go |
| OpenCode | Go Plus | $40 per month | 11 November 2026 | Higher limits than Go | opencode.ai/go |
| Command Code | Go | $1 per month plus a processing fee, with $10 in credits | 11 November 2026 | Credits run out; top-ups roll over | commandcode.ai/pricing |
| Command Code | GOAT | $10 per month | 11 November 2026 | Up to $100 in credits | commandcode.ai/pricing |
| Command Code | Pro | $20 per month | 11 November 2026 | Up to $110 in credits | commandcode.ai/pricing |
| Command Code | Max 10x | $100 per month | 11 November 2026 | $150 in credits | commandcode.ai/pricing |
| Command Code | Max 20x | $200 per month | 11 November 2026 | $300 in credits | commandcode.ai/pricing |
| Command Code | Teams | $40 per month | 11 November 2026 | Pooled credits for a team | commandcode.ai/pricing |
| Command Code | Provider (API plan) | $15 per month, then pay as you go | 11 November 2026 | For developers building on its API | commandcode.ai/pricing |
| Devin | Free | $0 | 11 November 2026 | Light quota, limited models | devin.ai/pricing |
| Devin | Pro | $20 per month | 11 November 2026 | Extra usage billed at API prices | devin.ai/pricing |
| Devin | Max | $200 per month | 11 November 2026 | Much higher quotas | devin.ai/pricing |
| Devin | Teams | $80 per month plus $40 per month per full developer seat | 11 November 2026 | Cost grows with each seat | devin.ai/pricing |
| Devin | Enterprise | Custom, contact sales | 11 November 2026 | Quote only | devin.ai/pricing |
| Claude Code | Included with Claude paid plans, or billed by use through the API | See the vendor page | 14 August 2026 (older than the rest) | Works only with Anthropic models | claude.com/claude-code |
| ZCode | Through the GLM Coding Plan | Points quota; two sources disagree on tier prices, see our comparison | 14 August 2026 (older than the rest) | Built around Z.ai models | zcode.z.ai |
| Antigravity | Through Google AI Pro, Ultra and Code Assist licences | See the vendor page | 14 August 2026 (older than the rest) | Gemini models only | antigravity.google |
How to read this table
Free does not mean free to run. The open-source tools cost nothing, but the AI model behind them does. DeepSeek, for example, quotes per million tokens (a token is a small piece of text), and the price changes with the time of day. Our DeepSeek Harness guide shows the numbers.
Subscription does not mean fixed. Devin and Command Code both sell a monthly plan with a usage allowance, and both let you buy extra usage on top. OpenCode Go counts allowances over five-hour, weekly and monthly windows. Ask what happens when you reach the limit before you pick a plan.
Per-seat prices add up. Devin Teams is $80 a month for the team plan plus $40 for every full developer seat. A team of five pays more than the headline number.
Which is the right pick?
- I am a small business with no developers. None of these. A coding agent writes code; it does not fix slow follow-ups or messy bookings. Start with our plan finder.
- I employ or hire a developer and want the lowest bill. Try a free open tool, such as OpenCode with its free models, and add a provider key when needed.
- I want to hand whole tickets to an AI and review the result. Devin is built for that, at a higher price.
- I want cheap open models and a tool that remembers my style. Command Code.
- I want a tiny tool I can shape myself. Pi, after you have read the safety section.
Where the detail lives
Our harness comparison lists the model policy, licence, extension points and an honest limit for every tool, each with a source and a check date. AI model prices are on the AI model tracker. If you spot a price that has moved, the vendor page in the table is the source of truth.