# Best Coding agents for Open models

> Source: https://theagentsindex.com/best/coding-agents/open-models (curated, quality-gated, re-verified)

9 of the 25 coding agents in this index qualify for Open models — every one a Published, quality-gated listing, not a scraped row.

Across the set: 6 of 8 with known API status (75%) expose a public API, paid plans span $5–$15, and 8 offer a free or freemium tier.

9 of 9 carry a fact-verification date; the freshest check is 2026-08-24.

All four support open-weight models (Llama, DeepSeek, Mixtral-class and similar), but only through a bring-your-own-provider setup — none of these bundle a hosted open model for you, so the real differentiator is how much setup each one demands before you can point it at a local or self-hosted model.

| # | Name | What it is | Pricing | API |
| --- | --- | --- | --- | --- |
| 1 | [Aider](https://theagentsindex.com/aider.md) | Open-source AI pair programming in your terminal, free under Apache 2.0, built to run against 14 LLM providers | free | No |
| 2 | [Cline](https://theagentsindex.com/cline.md) | The open-source coding agent. Bring your own key. Runs in your editor, terminal, and as an SDK, with optional ClinePass for flat-rate open-model access. | freemium | Yes |
| 3 | [Juggler](https://theagentsindex.com/juggler.md) | A free, open-source visual workbench for AI coding agents: each session is an editable Yjs tree, not a transcript. Single Go binary, no Electron, by the creator of JUCE. | free | No |
| 4 | [Junie](https://theagentsindex.com/junie.md) | JetBrains' own AI coding agent. Plans before it codes, drives the real IDE debugger, runs across the JetBrains IDE family plus a standalone CLI. Free 30-day Pro trial; Pro from $10/month. | paid | Yes |
| 5 | [Kilo Code](https://theagentsindex.com/kilo-code.md) | Open source AI coding agent for VS Code, JetBrains, CLI, and Cloud with 500+ models and no markup | freemium | Yes |
| 6 | [OpenAI Codex CLI](https://theagentsindex.com/codex-cli.md) | OpenAI's open-source (Apache-2.0) terminal coding agent, bundled into ChatGPT plans from Free through Pro — Business seats are grandfathered-only. | freemium | Yes |
| 7 | [OpenCode](https://theagentsindex.com/opencode.md) | A free, open-source (MIT) AI coding agent for the terminal, desktop and IDE, with 75+ model providers, built-in subscription login, and a tested model marketplace behind it. | freemium | Yes |
| 8 | [Zed](https://theagentsindex.com/zed.md) | The open-source, GPU-native code editor built from scratch by Atom's creators — runs Claude Code, Codex and other agents via the Agent Client Protocol it created. | freemium | No |
| 9 | [Zot](https://theagentsindex.com/zot.md) | A free, MIT-licensed coding-agent harness in one Go binary. Branch any session from any past message, run 30+ model providers from one catalog, and DM the agent from Telegram. | free | Yes |

## Methodology

Assembled programmatically from the live index: every entry is a Published, quality-gated listing in Coding agents carrying the "Open models" tag, ranked by tier then name. The numbers (9 tools, 75% of known with an API, paid plans $5–$15) are computed from the structured facts on those listings — this page exists only because the underlying data clears the density gate.