extraParams.provider was silently dropped by createStreamFnWithExtraParams().
This change injects it into model.compat.openRouterRouting so pi-ai's
buildParams includes params.provider in the API request body.
Enables OpenRouter provider routing options (only, order, allow_fallbacks,
data_collection, ignore, sort, quantizations) via model config:
```jsonc
"openrouter/model-name": {
"params": {
"provider": {
"only": ["deepinfra", "fireworks"],
"allow_fallbacks": false
}
}
}
```
Closes#10869✍️ Author: Claude Code with @carrotRakko (AI-written, human-approved)
* fix(providers): preserve openrouter/ prefix for native models (#12924)
OpenRouter-native models like 'openrouter/aurora-alpha' need the full
'openrouter/<name>' as the model ID in API requests. The existing
parseModelRef() stripped the prefix, sending just 'aurora-alpha'
which OpenRouter rejects with 400.
Fix: normalizeProviderModelId() now re-adds the 'openrouter/' prefix
for models without a slash (native models), while passing through
external provider models (e.g. 'anthropic/claude-sonnet-4-5') as-is.
Closes#12924
* Changelog: add OpenRouter note for #12942
---------
Co-authored-by: Luna AI <luna@coredirection.ai>
Co-authored-by: Vincent Koc <vincentkoc@ieee.org>
* fix: preserve stored provider in resolveSessionModelRef for vendor-prefixed models
When an OpenRouter model with a vendor prefix (e.g. "anthropic/claude-haiku-4.5")
was successfully used and persisted to the session entry, the next call to
resolveSessionModelRef would re-parse the model string through parseModelRef,
which splits on the first slash and incorrectly extracts "anthropic" as the
provider — discarding the stored "openrouter" provider entirely. This caused
subsequent requests to attempt direct Anthropic API calls with an OpenRouter
API key, producing "credit balance too low" billing errors.
The fix trusts the explicitly stored modelProvider on the session entry and
skips parseModelRef re-parsing when a provider is already recorded. parseModelRef
is still used as a fallback when no provider is stored on the entry.
Co-authored-by: Cursor <cursoragent@cursor.com>
* Changelog: add OpenRouter note for #22753
---------
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Vincent Koc <vincentkoc@ieee.org>
