Open Interpreter
Terminal coding agent forked from OpenAI's Codex and tuned for low-cost and open-weight models, with switchable harness modes that imitate tools like Claude Code.
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About Open Interpreter
Open Interpreter is listed in our coding category and is aimed at builders. Terminal coding agent forked from OpenAI's Codex and tuned for low-cost and open-weight models, with switchable harness modes that imitate tools like Claude Code. Pricing, as the maker states it: Open source. Maturity: Mature. We last checked the official link on 2026-10-17.
What is Open Interpreter?
Open Interpreter is a coding agent optimized for low-cost models. It is a fork of OpenAI's Codex that focuses on emulating the agent harness that gets the best performance out of cheaper and open-weight models.
A /harness command switches the active harness, it works in ACP-compatible editors via interpreter acp, and it speaks the same Codex exec protocol, so Codex SDK users can switch with a one-line change. You start a session by typing i or interpreter in your terminal.
Sources: the official README and our directory listing, checked 2026-10-18. Official site: openinterpreter.com.
Who is Open Interpreter for?
Developers who want a terminal coding agent that gets more out of low-cost or open-weight models than general-purpose harnesses do.
Open Interpreter at a glance
- Open source: Yes (Apache License 2.0)
- GitHub: openinterpreter/openinterpreter · 68,625 stars (as of Oct 21, 2026)
Key features
- Fork of OpenAI's Codex tuned for low-cost models
- Switchable harness modes via /harness
- Works in ACP-compatible editors
- Compatible with the Codex SDK exec protocol
Open Interpreter FAQ
What is Open Interpreter?
Open Interpreter is a coding agent optimized for low-cost models. It is a fork of OpenAI's Codex that focuses on emulating the agent harness that gets the best performance out of cheaper and open-weight models.
Who is Open Interpreter for?
Developers who want a terminal coding agent that gets more out of low-cost or open-weight models than general-purpose harnesses do.
Is Open Interpreter free?
Open Interpreter's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is Open Interpreter open source?
Yes. Open Interpreter is released under the Apache License 2.0, according to its GitHub repository.
What are alternatives to Open Interpreter?
Similar tools include Claude Code, OpenAI Codex CLI, opencode, hax, Ante and Code-Graph-RAG.
Open Interpreter ratings and reviews
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Open Interpreter alternatives
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Code-Graph-RAG
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