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feat: show model pricing for OpenRouter and Nous Portal providers

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Display live per-million-token pricing from /v1/models when listing
models for OpenRouter or Nous Portal. Prices are shown in a
column-aligned table with decimal points vertically aligned for
easy comparison.

Pricing appears in three places:
- /provider slash command (table with In/Out headers)
- hermes model picker (aligned columns in both TerminalMenu and
  numbered fallback)

Implementation:
- Add fetch_models_with_pricing() in models.py with per-base_url
  module-level cache (one network call per endpoint per session)
- Add _format_price_per_mtok() with fixed 2-decimal formatting
- Add format_model_pricing_table() for terminal table display
- Add get_pricing_for_provider() convenience wrapper
- Update _prompt_model_selection() to accept optional pricing dict
- Wire pricing through _model_flow_openrouter/nous in main.py
- Update test mocks for new pricing parameter
This commit is contained in:
emozilla 2026-04-03 18:46:45 -04:00 • committed by Teknium
parent 0efe7dace7
commit 0365f6202c
5 changed files with 251 additions and 17 deletions
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4
tests/test_cli_provider_resolution.py
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@ -330,7 +330,7 @@ def test_model_flow_nous_prints_subscription_guidance_without_mutating_explicit_
"hermes_cli.auth.fetch_nous_models",
lambda *args, **kwargs: ["claude-opus-4-6"],
)
monkeypatch.setattr("hermes_cli.auth._prompt_model_selection", lambda model_ids, current_model="": "claude-opus-4-6")
monkeypatch.setattr("hermes_cli.auth._prompt_model_selection", lambda model_ids, current_model="", pricing=None: "claude-opus-4-6")
monkeypatch.setattr("hermes_cli.auth._save_model_choice", lambda model: None)
monkeypatch.setattr("hermes_cli.auth._update_config_for_provider", lambda provider, url: None)
monkeypatch.setattr(
@ -368,7 +368,7 @@ def test_model_flow_nous_applies_managed_tts_default_when_unconfigured(monkeypat
"hermes_cli.auth.fetch_nous_models",
lambda *args, **kwargs: ["claude-opus-4-6"],
)
monkeypatch.setattr("hermes_cli.auth._prompt_model_selection", lambda model_ids, current_model="": "claude-opus-4-6")
monkeypatch.setattr("hermes_cli.auth._prompt_model_selection", lambda model_ids, current_model="", pricing=None: "claude-opus-4-6")
monkeypatch.setattr("hermes_cli.auth._save_model_choice", lambda model: None)
monkeypatch.setattr("hermes_cli.auth._update_config_for_provider", lambda provider, url: None)
monkeypatch.setattr(