Hermes 2 Pro Llama 3 8B
Hermes 2 Pro Llama 3 8B is NousResearch's fine-tune of Meta's Llama 3 8B base, specifically optimized for structured function calling and agentic tool use. NousResearch applied the Hermes 2 Pro training recipe — which emphasizes OpenAI-compatible function call formatting and reliable JSON output — to the stronger Llama 3 foundation, resulting in a compact model that performs reliably in tool-use pipelines.
The model is well-suited for developers building lightweight AI agents, chatbots with tool access, or API routing systems where the model must consistently output structured call objects. Its 8B footprint makes it economical to serve while still offering solid natural language understanding for the conversational turns between tool calls.
Key Features
OpenAI-compatible function calling with reliable JSON schema adherence
Structured output for tool use in agentic pipelines
Strong instruction following from Hermes 2 Pro training recipe
Multi-turn conversation handling between tool call rounds
Llama 3 base provides improved reasoning over earlier Llama generations
Efficient 8B size for high-throughput or low-latency deployments
Ideal Use Cases
AI agent backend requiring reliable function call formatting
Chatbot with tool access (search, calculator, API calls)
API routing where model determines which service to invoke
Lightweight assistant that needs structured JSON output
Example Prompts for Hermes 2 Pro Llama 3 8B
Technical Specifications
| Provider | NousResearch |
| Category | Text |
| Modality | Text -> Text |
Frequently Asked Questions
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