feat: add Hugging Face as a first-class inference provider (#3419)

Salvage of PR #1747 (original PR #1171 by @davanstrien) onto current main.

Registers Hugging Face Inference Providers (router.huggingface.co/v1) as a named provider:
- hermes chat --provider huggingface (or --provider hf)
- 18 curated open models via hermes model picker
- HF_TOKEN in ~/.hermes/.env
- OpenAI-compatible endpoint with automatic failover (Groq, Together, SambaNova, etc.)

Files: auth.py, models.py, main.py, setup.py, config.py, model_metadata.py, .env.example, 5 docs pages, 17 new tests.

Co-authored-by: Daniel van Strien <davanstrien@gmail.com>
This commit is contained in:
Teknium 2026-03-27 12:41:59 -07:00 committed by GitHub
parent f57ebf52e9
commit fd8c465e42
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
13 changed files with 240 additions and 8 deletions

View file

@ -92,6 +92,7 @@ You need at least one way to connect to an LLM. Use `hermes model` to switch pro
| **Kilo Code** | `KILOCODE_API_KEY` in `~/.hermes/.env` (provider: `kilocode`) |
| **OpenCode Zen** | `OPENCODE_ZEN_API_KEY` in `~/.hermes/.env` (provider: `opencode-zen`) |
| **OpenCode Go** | `OPENCODE_GO_API_KEY` in `~/.hermes/.env` (provider: `opencode-go`) |
| **Hugging Face** | `HF_TOKEN` in `~/.hermes/.env` (provider: `huggingface`, aliases: `hf`) |
| **Custom Endpoint** | `hermes model` (saved in `config.yaml`) or `OPENAI_BASE_URL` + `OPENAI_API_KEY` in `~/.hermes/.env` |
:::info Codex Note
@ -224,6 +225,32 @@ model:
Base URLs can be overridden with `GLM_BASE_URL`, `KIMI_BASE_URL`, `MINIMAX_BASE_URL`, `MINIMAX_CN_BASE_URL`, or `DASHSCOPE_BASE_URL` environment variables.
### Hugging Face Inference Providers
[Hugging Face Inference Providers](https://huggingface.co/docs/inference-providers) routes to 20+ open models through a unified OpenAI-compatible endpoint (`router.huggingface.co/v1`). Requests are automatically routed to the fastest available backend (Groq, Together, SambaNova, etc.) with automatic failover.
```bash
# Use any available model
hermes chat --provider huggingface --model Qwen/Qwen3-235B-A22B-Thinking-2507
# Requires: HF_TOKEN in ~/.hermes/.env
# Short alias
hermes chat --provider hf --model deepseek-ai/DeepSeek-V3.2
```
Or set it permanently in `config.yaml`:
```yaml
model:
provider: "huggingface"
default: "Qwen/Qwen3-235B-A22B-Thinking-2507"
```
Get your token at [huggingface.co/settings/tokens](https://huggingface.co/settings/tokens) — make sure to enable the "Make calls to Inference Providers" permission. Free tier included ($0.10/month credit, no markup on provider rates).
You can append routing suffixes to model names: `:fastest` (default), `:cheapest`, or `:provider_name` to force a specific backend.
The base URL can be overridden with `HF_BASE_URL`.
## Custom & Self-Hosted LLM Providers
Hermes Agent works with **any OpenAI-compatible API endpoint**. If a server implements `/v1/chat/completions`, you can point Hermes at it. This means you can use local models, GPU inference servers, multi-provider routers, or any third-party API.
@ -627,7 +654,7 @@ fallback_model:
When activated, the fallback swaps the model and provider mid-session without losing your conversation. It fires **at most once** per session.
Supported providers: `openrouter`, `nous`, `openai-codex`, `copilot`, `anthropic`, `zai`, `kimi-coding`, `minimax`, `minimax-cn`, `custom`.
Supported providers: `openrouter`, `nous`, `openai-codex`, `copilot`, `anthropic`, `huggingface`, `zai`, `kimi-coding`, `minimax`, `minimax-cn`, `custom`.
:::tip
Fallback is configured exclusively through `config.yaml` — there are no environment variables for it. For full details on when it triggers, supported providers, and how it interacts with auxiliary tasks and delegation, see [Fallback Providers](/docs/user-guide/features/fallback-providers).