bf87ae620e
OpenAI released GPT-6.1 Sol on 2026-09-29. It is live on OpenRouter (openai/gpt-6.1-sol, -pro) and the direct API; not yet on Nous Portal or on Codex OAuth for our test account. - Catalog: OPENROUTER_MODELS + openai-api picker; kept off the nous list via _OPENROUTER_ONLY until the Portal serves it. Manifest regenerated. - Context: 1.05M direct API, 272K Codex fallback; 272K compaction auto-raise on the Codex route. - Pricing: $2/$10, cached input $0.10 (5%, not 6 Sol's 10%), cache write $2.50, 2x/1.5x above 272K; -pro aliased to the base row. - Reasoning: none/minimal return 400 on 6.1 Sol (unlike 6 Sol), so it uses Astra's low..max ladder without Astra's account gating. OpenRouter's catalog wrongly lists 'none' for it, so the OpenRouter profile omits a disable when the OpenAI ladder has no 'none'.
Model Provider Plugins
Each subdirectory is a self-contained provider profile plugin. The
directory layout mirrors plugins/platforms/:
plugins/model-providers/
├── openrouter/
│ ├── __init__.py # registers the ProviderProfile
│ └── plugin.yaml # manifest: name, kind, version, description
├── anthropic/
│ ├── __init__.py
│ └── plugin.yaml
└── ...
How discovery works
providers/__init__.py._discover_providers() scans this directory (and
$HERMES_HOME/plugins/model-providers/) the first time anything calls
get_provider_profile() or list_providers(). Each __init__.py is
imported and expected to call providers.register_provider(profile).
User plugins at $HERMES_HOME/plugins/model-providers/<name>/ override
bundled plugins of the same name — last-writer-wins in
register_provider(). Drop a file there to replace a built-in.
Adding a new provider
-
Create
plugins/model-providers/<your_provider>/__init__.py:from providers import register_provider from providers.base import ProviderProfile my_provider = ProviderProfile( name="your-provider", aliases=("alias1", "alias2"), display_name="Your Provider", description="One-line description shown in the setup picker", signup_url="https://your-provider.example.com/keys", env_vars=("YOUR_PROVIDER_API_KEY", "YOUR_PROVIDER_BASE_URL"), base_url="https://api.your-provider.example.com/v1", default_aux_model="your-cheap-model", ) register_provider(my_provider) -
Create
plugins/model-providers/<your_provider>/plugin.yaml:name: your-provider-profile kind: model-provider version: 1.0.0 description: Short sentence about the provider author: Your Name
Nothing else needs to change. auth.py, config.py, models.py,
doctor.py, model_metadata.py, runtime_provider.py, and the
chat_completions transport all auto-wire from the registry.
Non-trivial profiles
Override the ProviderProfile hooks in a subclass for per-provider
quirks — see plugins/model-providers/openrouter/__init__.py for
build_extra_body and build_api_kwargs_extras examples, and
plugins/model-providers/gemini/__init__.py for thinking_config
translation.