SGLang alternatives
6 fine-tuning tools in the same lane as SGLang, ranked by editorial score.
VL
vLLM
Fine-tuning · Multi-model (open-weight LLMs: Llama, Qwen, DeepSeek, Mistral, Gemma, Phi, etc.)
8.3
Open-source high-throughput inference engine for serving LLMs with PagedAttention and continuous batching.
Free· Free and open-source (Apache 2.0); self-hosted infrastructure costs applyllm-servingself-hosted-inference
RE
Replicate
Fine-tuning · Thousands of community + first-party models
8.5
One-API platform for running and fine-tuning open-source models.
Paid· Pay-per-second of GPU timemodel hostingfine-tuning
FA
Fireworks AI
Fine-tuning · Multi-model (DeepSeek, Qwen, GLM, Kimi, Gemma, Minimax, others)
7.9
Production inference and fine-tuning platform for open-source LLMs, tuned for speed and enterprise economics.
Freemium· Free signup credits; pay-per-token from ~$0.14/M in; enterprise reserved capacity on requestllm-fine-tuningserverless-inference
TA
Together AI
FeaturedFine-tuning · Llama / Mistral / Qwen / DeepSeek and others
8.6
Fine-tune & serve open-weight models (Llama, Mistral, DeepSeek).
Paid· Pay-per-token; fine-tuning per-tokenopen modelsfine-tuning
UN
Unsloth
Fine-tuning · Llama, Mistral, Gemma, Qwen, GLM (multi-model)
8.2
Open-source LLM fine-tuning toolkit with custom kernels that train 2-30x faster and use up to 90% less VRAM.
Freemium· Free open-source; Pro and Enterprise contact saleslora-finetuningqlora
FO
Forefront
Fine-tuning · Multi-model (Mistral-7B, Mixtral, Phi-2)
7.0
Fine-tune and serve open-source LLMs on your own data without managing GPUs.
Paid· Basic: $20 · Pro: $50 · Enterprise: Contact salesfine-tuningopen-source-llms