2 Best OpenChatKit Alternatives in 2026 (Open Source)
OpenChatKit. vs closed-source chatbots: fully open training pipeline (model + data + moderation + retrieval) under Apache 2.0, from Together Computer with EleutherAI collaboration
Short answer
- Closest match to OpenChatKit: Axolotl.
- Most actively developed: Axolotl (195 commits in the last 90 days).
- Fastest growing: Axolotl (+157 GitHub stars in the last 30 days).
These 2 open-source tools do the same job. They are ordered by how closely they match OpenChatKit, with live GitHub data so you can see which projects are actively maintained.
| Tool | GitHub stars | Stars / 30d | Last commit |
|---|---|---|---|
| OpenChatKit(original) | 9.0k | -4 | 2024-04-09 |
| Axolotl | 12.5k | +157 | 2026-10-02 |
| oumi | 9.4k | +75 | 2026-10-01 |
1. Axolotl
Go ahead and axolotl questions
What sets it apart: vs LLaMA-Factory: broader training method support (GRPO/QAT/ScatterMoE) with faster new model adoption; vs HuggingFace TRL: more production-ready with multi-GPU optimization and single YAML config
Best for: Fine-tuning latest open-source LLMs; LoRA/QLoRA training on consumer GPUs; Research teams exploring preference tuning methods
2. oumi
Easily fine-tune, evaluate and deploy gpt-oss, Qwen3, DeepSeek-R1, or any open source LLM / VLM!
What sets it apart: vs Axolotl/LLaMA-Factory: Complete end-to-end platform covering data synthesis, training (up to 405B params), evaluation, and deployment with one consistent API - not just a fine-tuning tool
Best for: ML teams training and fine-tuning foundation models end-to-end; Research groups needing a unified platform from data to deployment; Organizations scaling model training across multiple clouds
FAQ
- What are the best alternatives to OpenChatKit?
- The closest open-source alternatives to OpenChatKit are Axolotl and oumi. They are ranked by how closely they match what OpenChatKit does.
- Which OpenChatKit alternative is the most popular?
- Axolotl has the most GitHub stars among OpenChatKit alternatives, with 12,513 stars.
- Which OpenChatKit alternative is the most actively maintained?
- By recent activity, Axolotl (195 commits in the last 90 days) is the most actively developed alternative.