Shortlist by what you need
Start here if you know why you are leaving Codegen.
Want the closest match?
Google JulesMost similar to Codegen in what it does, its category and its price.
Visit (opens Google Jules in a new tab)Need a free plan?
Augment CodeHas a free plan, rated 4.3 out of 5. Codegen has none.
Visit (opens Augment Code in a new tab)Want to pay less than Codegen?
Sourcegraph AmpFrom $10/mo, against from $40/mo for Codegen.
Visit (opens Sourcegraph Amp in a new tab)Want the best rated?
GreptileRated 4.3 out of 5 in our review, against 5.0 for Codegen.
Visit (opens Greptile in a new tab)
At a glance
Green means better than Codegen, red means worse. Prices are starting prices per month.
| Tool | Our rating | Starts at | Free plan | Best for | Compare |
|---|---|---|---|---|---|
 CodegenBaseline | 5.0 | $40/mo | No | Automates large-scale migrations and PRs, not interactive coding | |
| Google Jules | 4.2−0.8 | Free | YesCodegen has none | Assign it a GitHub issue, it works in the background and opens a PR | vs Codegen |
| Greptile | 4.3−0.7 | $30/mo$10 less | No | A custom-built code graph engine for reviewing large monorepos | vs Codegen |
 Cosine | 4.1−0.9 | $20/mo$20 less | No | Genie, trained on how senior engineers actually solve tickets | vs Codegen |
 Factory | 4.3−0.7 | $40/moSame price | No | Specialized 'Droids' for different stages of the development lifecycle | vs Codegen |
| Augment Code | 4.3−0.7 | $20/mo$20 less | YesCodegen has none | Built around indexing an entire large enterprise codebase | vs Codegen |
 Cognition AI | 4.1−0.9 | $20/mo$20 less | YesCodegen has none | Cognition AI built Devin, an autonomous coding agent that plans, writes, tests, and ships code inside a sandboxed development environment. | vs Codegen |
 Sourcegraph Cody | 4.2−0.8 | Not listed | No | Sourcegraph's established chat-and-autocomplete assistant, not its newer agent | vs Codegen |
| Sourcegraph Amp | 4.3−0.7 | $10/mo$30 less | No | An agentic coding tool built on a decade of enterprise code search | vs Codegen |
The alternatives in detail
In order of how closely each one matches Codegen.
Google Jules
4.2Free
vs Codegen−0.8Free plan
Assign it a GitHub issue, it works in the background and opens a PR.
- Asynchronous background task execution
- Works directly from GitHub issues
- Opens pull requests automatically when tasks complete
Async workflow fits clearing a backlog without constant supervision
Less suited to tasks needing real-time back-and-forth guidance
Greptile
4.3$30/mo
vs Codegen$10 less−0.7
A custom-built code graph engine for reviewing large monorepos.
- Custom-built code graph engine for large codebases
- AI pull request review with cross-repository context
- API access for building custom review workflows
Custom indexing engine targets large monorepo scale specifically
No free tier to test before committing
Cosine
4.1$20/mo
vs Codegen$20 less−0.9
Genie, trained on how senior engineers actually solve tickets.
- Genie agent trained on real engineering problem-solving data
- Autonomous ticket-to-pull-request resolution
- Root-cause investigation before proposing fixes
Training approach targets realistic debugging reasoning, not just code patterns
No free tier to test before committing
Factory
4.3$40/mo
vs CodegenSame price−0.7
Specialized 'Droids' for different stages of the development lifecycle.
- Specialized "Droid" agents for different development lifecycle stages
- Coding, review, and other task-specific agents
- Built for enterprise engineering organizations
Task-specialized agents can outperform a generalist at specific stages
No free tier, a real commitment before testing thoroughly
Augment Code
4.3$20/mo
vs Codegen$20 less−0.7Free plan
Built around indexing an entire large enterprise codebase.
- Context engine indexing an entire large codebase
- Integrates into existing IDEs rather than requiring a switch
- Built for large-scale enterprise engineering teams
Full-codebase context suits genuinely large, complex engineering projects
No free tier to test before committing
Cognition AI
4.1$20/mo
vs Codegen$20 less−0.9Free plan
Cognition AI built Devin, an autonomous coding agent that plans, writes, tests, and ships code inside a sandboxed development environment.
- Autonomous planning, coding, testing, and PR creation from a single ticket
- Sandboxed VM execution isolated from a team's live environment
- Integration with existing code repositories and developer tools
Handles full ticket-to-PR workflows, beyond inline code suggestions
ACU-based pricing makes real monthly cost hard to predict in advance
Sourcegraph Cody
4.2Not listed
vs Codegen−0.8
Sourcegraph's established chat-and-autocomplete assistant, not its newer agent.
- Chat and code completion grounded in Sourcegraph's code search
- Distinct from Sourcegraph's newer, more autonomous Amp product
- Understanding spans an entire repository or organization's codebase
Grounded in genuinely mature, enterprise-tested code search technology
No free tier to test before committing
Sourcegraph Amp
4.3$10/mo
vs Codegen$30 less−0.7
An agentic coding tool built on a decade of enterprise code search.
- Built on Sourcegraph's decade-old enterprise code search infrastructure
- Agentic coding capabilities layered onto proven context technology
- Designed for genuinely large-scale, multi-repository codebases
Built on scale-tested code search infrastructure, not a newer unproven approach
No free tier to test before committing
FAQ
Questions people ask
Is Codegen free?
Codegen does not list a free plan. Paid plans start from $40/mo.
What is the best free alternative to Codegen?
Augment Code is the highest-rated alternative here with a free plan (4.3 out of 5). Other free options: Google Jules, Cognition AI.
What is the cheapest alternative to Codegen?
Among paid plans, Sourcegraph Amp has the lowest starting price (from $10/mo). If you need it free, start with Augment Code.
How did you pick these alternatives?
We match tools on what they do, their category and their price, using the details in our directory. Ratings come from our reviews and reader reviews.