Empryo vs OpenCode
OpenCode is a popular open-source coding agent that runs in your terminal and works with many model providers. Empryo is also a terminal agent, and it adds a desktop app and a headless CLI. The main difference is how each one finds and changes code. Empryo builds the Genome, a map of every file, symbol and import in your repo, and the agent starts each task with that map. When it edits, it changes code by symbol name and uses your language server for renames, instead of rewriting text.
Two terminal agents with different ideas about how an AI should change your code.
6 rows: 1 much alike, 5 different
Side by side
| Feature | Empryo | OpenCode | In short |
|---|---|---|---|
| How edits are made | By symbol name. TypeScript and JavaScript edits go through the syntax tree; renames use the language server. Batches apply all at once or not at all. | Text and diff-based file edits. | Different approach Empryo edits by symbol name and applies a batch all at once or not at all. OpenCode edits files as text and diffs. |
| How it finds code | The Genome: a map of files, symbols and imports, with a count of how many files depend on each one. The agent starts with it. | Search and file reads, plus project instructions in an AGENTS.md file. | Different approach Empryo starts from the Genome, its map of your code. OpenCode searches and reads files, guided by an AGENTS.md file. |
| Model choice | Many built-in providers, custom OpenAI-compatible providers and local models. A task router assigns a different model to each kind of job. | Many providers, plus its own optional model gateway. | Much alike Both work with many providers. Empryo can give each kind of job its own model; OpenCode has an optional gateway of its own. |
| Where it runs | Desktop app, terminal UI (with an optional Neovim panel) and a headless CLI with JSON output and exit codes for scripts and CI. | Terminal UI and other clients built on its client and server design. | Different approach Both have a terminal UI. Empryo adds a desktop app and a CLI for scripts and CI; OpenCode has other clients built on its server. |
| Undo and recovery | Checkpoints that roll back code and conversation together. | Session undo and redo, a read-only plan mode and per-tool permissions. | Different approach Empryo rolls back code and conversation together. OpenCode has undo and redo, a read-only plan mode and per-tool permissions. |
| Source | Closed source. You use your own model keys or local models. | Open source (MIT). | Different approach OpenCode is open source under MIT. Empryo is closed source. |
- Much alike
- Different approach
Which one fits
Choose Empryo if
Choose Empryo when a wrong edit is expensive. In a large codebase where renaming a function or changing its signature touches many files, Empryo edits by symbol and uses the language server for renames, so every reference moves together. The Genome shows the agent how many files depend on the code it is about to change. You can assign a cheap model to exploring and a strong model to writing code with the task router. Checkpoints let you roll back a risky change, code and conversation together.
Choose OpenCode if
Choose OpenCode when you want an open-source project with a large community. You can read and change its source, it supports a long list of model providers, and it has a well-documented client and server design that other tools can build on. Its agents have per-tool permission rules, and it can share session links. If you mostly want a text-based agent with wide model support and an active ecosystem, OpenCode is a solid choice.
Bottom line
OpenCode is the more established open-source project, with a bigger community and a design other tools can build on. Empryo focuses on one thing: giving the agent a map of your code and letting it edit by symbol instead of by text. If community and openness come first, pick OpenCode. If you want an agent whose edits follow your code's structure, try Empryo.
Common questions
Is Empryo or OpenCode faster and cheaper?
It depends on your codebase, your model and your task. Empryo's task router can lower cost by sending exploring to a cheaper model while a stronger model writes code. For measured head-to-head runs, see the Empryo benchmarks page, which lists each test and how it was run.
What is the real difference in how they edit code?
OpenCode edits files as text. Empryo edits by symbol: for TypeScript and JavaScript it changes the syntax tree directly, and for renames it asks the language server to update every reference. That makes Empryo's edits less likely to miss a call site or break because of whitespace.
Can I use my own model keys with both?
Yes. Both let you bring your own API key for many providers. Empryo can also run local models through Ollama or LM Studio, or use a GitHub Copilot plan you already pay for. OpenCode is open source under the MIT license; Empryo is closed source.
Which works better with my editor?
Neither replaces your editor. Empryo runs next to it as a desktop app or in the terminal, and its terminal UI can show a Neovim panel if you have Neovim installed. OpenCode runs in the terminal and has other clients built on its client and server design.