135 models ranked for open source development. Scored with bonuses for open source licenses (+10), free access (+5), large context (full codebases), large output (complete components), reasoning, and streaming.
| # | Model | Score |
|---|---|---|
| 1 | Gemma 4 31B (free)Google | 81 |
| 2 | Gemma 4 31BGoogle | 81 |
| 3 | MiniMax M2.5 (free)MiniMax | 78 |
| 4 | Qwen3.5 397B A17BAlibaba | 80 |
| 5 | R1 0528DeepSeek | 79 |
| 6 | MiniMax M2.5MiniMax | 78 |
| 7 | Gemma 4 26B A4B (free)Google | 73 |
| 8 | Qwen3.5-122B-A10BAlibaba | 78 |
| 9 | Qwen3.5-27BAlibaba | 77 |
| 10 | GLM 5.1Zhipu AI | 76 |
| 11 | Qwen3.5-35B-A3BAlibaba | 76 |
| 12 | Kimi K2.6Moonshot AI | 76 |
| 13 | MiMo-V2.5-ProXiaomi | 76 |
| 14 | DeepSeek V4 ProDeepSeek | 76 |
| 15 | GLM 4.5 Air (free)Zhipu AI | 71 |
| 16 | GLM 4.5Zhipu AI | 75 |
| 17 | GLM 5Zhipu AI | 78 |
| 18 | GLM 4.7Zhipu AI | 73 |
| 19 | DeepSeek V4 FlashDeepSeek | 72 |
| 20 | MiniMax M2MiniMax | 72 |
| 21 | MiMo-V2.5Xiaomi | 72 |
| 22 | GLM 4.6Zhipu AI | 71 |
| 23 | GLM 4.5 AirZhipu AI | 71 |
| 24 | DeepSeek V3.2DeepSeek | 70 |
| 25 | DeepSeek V3.2 ExpDeepSeek | 70 |
| 26 | Gemma 4 26B A4B Google | 73 |
| 27 | R1DeepSeek | 73 |
| 28 | MiniMax M2.1MiniMax | 70 |
| 29 | DeepSeek V3.1 TerminusDeepSeek | 69 |
| 30 | Hy3 previewTencent | 69 |
Open source models come with publicly available code and weights. You can inspect the model architecture, training approach, and data usage. This transparency builds trust and enables community-driven improvements and customizations.
Contribute directly to open source AI projects. Fix bugs, improve performance, add features, and participate in discussions. Open source models benefit from collective intelligence and diverse perspectives across the developer community.
Deploy open source models on your own infrastructure. No vendor lock-in, no monthly subscriptions, complete data privacy. Run models locally on your laptop, server, or cloud infrastructure with full control over updates and deployments.
Fine-tune open source models on your domain-specific data. Adapt models for specialized tasks, proprietary knowledge, or unique vocabularies. Open source enables experimentation without restrictions or vendor approval.
Models with large context windows (128K+) understand complex codebases required for meaningful contributions. Reasoning helps follow project conventions and architectural patterns. Streaming provides real-time assistance while exploring unfamiliar code.
Yes, models triage issues, draft responses to bug reports, review pull requests, generate release notes, and maintain documentation. Function calling integrates with GitHub/GitLab APIs for automated project management workflows.
Models generate conventional commit messages, write detailed PR descriptions, and create changelog entries from git diffs. They analyze code changes to explain the "why" behind changes and identify potential breaking changes for reviewers.
Models produce README files, API reference docs, contribution guides, and architecture documentation. Large context processes entire codebases for accurate documentation. Web search references similar projects for best-practice patterns.