Coding · segment
Open-source
The tool itself is open source.
No independent measure ranks this whole set, so no crown. Shortlist ordered by Open source; the basis is stated, not hidden.
5 eligibledata as of 2026-07-04
A Aider Paul Gauthier (Aider-AI) C live
- Pricing
- free (open source; pay chosen LLM API)
official
- Model
- BYO / multi-model (Claude, GPT, DeepSeek, Gemini, local)
official
- Agentic
- assist only
official
- Open source
- open · Apache-2.0
official
- Form
- CLI
official
- Free tier
- open self-host
official
Quality no independent measure
C Cline Cline Bot Inc. C live
- Pricing
- free (tool; BYO API key, pay provider token costs)
official
- Model
- BYO / multi-model (Anthropic, OpenAI, Gemini, local)
official
- Agentic
- yes
official
- Open source
- open · Apache-2.0
official
- Form
- IDE plugin
official
- Free tier
- open self-host
official
Quality no independent measure
OC OpenAI Codex OpenAI A live
- Pricing
- Free · Go $8/mo · Plus $20/mo · Pro $100–200/mo · API usage-based
official
- Model
- own (GPT-5.5 / GPT-5.4 / GPT-5.4 mini)
official
- Agentic
- yes
official
- Open source
- open · Apache-2.0 (CLI only; cloud/models closed)
official
- Form
- cloud agent (+ CLI + IDE)
official
- Free tier
- limited
official
Quality no independent measure
Q Qwen3-Coder Alibaba (Qwen team) A live
- Pricing
- free open weights (self-host) or usage-based via Alibaba Cloud API
official
- Model
- own (Qwen3-Coder 480B-A35B MoE)
official
- Agentic
- yes
official
- Open source
- open · Apache-2.0 (weights + CLI)
official
- Form
- CLI
official
- Free tier
- open self-host
official
Quality no independent measure
Z Zed Zed Industries B live
- Pricing
- Personal free · Pro $10/mo · Business $30/seat/mo
official
- Model
- BYO / multi-model + own edit-prediction model (Zeta)
official
- Agentic
- yes
official
- Open source
- open · GPL-3.0-or-later
official
- Form
- IDE
official
- Free tier
- limited
official
Quality no independent measure