TLM Playground vs Tune

TLM Playground is Cleanlab's documentation hub for the Trustworthy Language Model (TLM), a model generation API that scores how reliable any LLM response is in real time. Each answer gets a trustworthiness score between 0 and 1, flagging hallucinations and reasoning errors before they reach users. Install the Python client with pip install cleanlab-tlm, set a CLEANLAB_TLM_API_KEY, and call TLM.prompt() to generate scored responses or get_trustworthiness_score() to audit outputs from your existing stack.

Most hallucination detectors focus on faithfulness to retrieved context. Metrics like RAGAS check whether an answer matches source documents but miss factual errors when the context is thin or confusing. TLM uses model uncertainty estimation rather than LLM-as-judge prompting, and Cleanlab publishes benchmarks showing 3x greater precision than RAGAS in RAG workflows. It needs no labeled training data on your domain, which sidesteps the drift problem that breaks custom evaluators.

ML and AI engineers building RAG pipelines, chatbots, and agent systems use TLM to gate low-confidence outputs, route them to humans, or swap in fallback answers. The API covers structured outputs, tool calls, classification labels, and multi-turn conversations, not just plain text completions.

Tune is an enterprise GenAI stack from NimbleBox that helps teams fine-tune, deploy, and run open-source large language models on their own cloud or on-prem infrastructure. The platform centers on Tune Studio for model experimentation and fine-tuning, Tune Chat for customizable AI assistants, and professional services for organizations that want hands-on help.

Tune Studio gives developers a playground to test LLMs, save high-quality interaction datasets, fine-tune models on dedicated GPU hardware, and deploy through public APIs or inference engines like TGI, vLLM, and Triton. Supported base models include Llama 3.1, Qwen 2, Gemma 2, Mixtral, and others.

The company positions itself for enterprises that need data ownership, compliance, and flexibility beyond closed-source APIs. Tune reports SOC 2 Type 2, HIPAA, and ISO 27001 compliance, with options for dedicated cloud, user cloud, and on-premises deployment.