"These settings don't work" — picking a model and testing with a voice
returned 500 every time. The gateway said why, once asked directly:
voice must be one of the following voices: [autumn diana hannah austin daniel troy]
The screen was listing twelve Orpheus voices and six Kokoro ones in a
single flat list with no indication of which model would accept which,
because LITELLM_TTS_VOICES — written for one model — was treated as a
list that applied to all of them, and the Orpheus lists were pushed in
beside it. Choosing Orpheus and testing it with a Kokoro voice is not a
configuration; it is an error, and it was the default outcome.
LiteLLM cannot supply this. /model/info reports mode audio_speech for
all four models and carries no voice field for any of them. So the
mapping lives here, keyed by family so the gateway alias and the
upstream id resolve to one list, and every list was taken from the
provider rather than from documentation:
Groq Orpheus English autumn diana hannah austin daniel troy (stated by Groq)
Groq Orpheus Arabic abdullah fahad sultan lulwa noura aisha (stated by Groq)
Fish s2.1-pro alloy (alloy returns audio; the rest 400)
Kokoro sherpa/kokoro:* from LITELLM_TTS_VOICES (the gateway's own list)
The environment still wins for the model it was written for, so the
local gateway's voices can change without a code change — but it
answers for that model only. A model with no list at all is offered
nothing rather than another model's voices, and a voice known to belong
to a different family is refused.
There were two copies of this knowledge before: getLiteLLMTTSVoicesForModel
branched by family and fell through to the env list for any model it did
not recognise — which is how Fish came to be offered six Kokoro voices.
One table now.
Also in this commit: citation renumbering skips fenced code, inline code
and math, so arr[2][1] in a code block is never rewritten. Renumbering at
render time was tried and reverted — it also has to skip HTML attributes,
and every such region is another regex branch. It stays at the answer
boundary, and the saved-chat boundary is next.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Dv6sqaY6Vq3ChZHMem3cnU
e376f69502