ENG-86341: docs: note Kokoro voice mixing syntax on audio-speech voice field

[rishabh-bhargava]

Summary

• hexgrad/Kokoro-82M supports combining voices via voiceA+voiceB (equal weights) or voiceA(2)+voiceB(1) (weighted). Other TTS models require a single voice name.
• This updates the voice field description on the audio-speech request schema so API consumers see the syntax inline, alongside the existing voice guidance.
• Companion to inference-pop #1803 (validator fix) and mintlify-docs #707 (user-facing docs).

Test plan

• Generated API reference renders the new description correctly
• SDK regeneration (if auto-triggered) picks up the updated schema without breaking types

🤖 Generated with Claude Code

[github-actions]

✱ Stainless preview builds

This PR will update the togetherai SDKs with the following commit messages.

go

docs(api): document voice mixing support for audio speech voice parameter

openapi

docs(api): update voice parameter description with voice mixing details

python

docs(api): document voice mixing for speech voice parameter

terraform

chore(internal): regenerate SDK with no functional changes

typescript

docs(api): document voice mixing support for speech voice parameter

✅ togetherai-openapi studio · code

Your SDK build had at least one "note" diagnostic.
generate ✅

⚠️ togetherai-python studio · code

Your SDK build had at least one "warning" diagnostic.
generate ⚠️ → build ✅ → lint ✅ → test ⏭️

pip install https://pkg.stainless.com/s/togetherai-python/15aab9c8ad0d3470bdea1e654127bcbd02e71c5c/together-2.10.0-py3-none-any.whl

⚠️ togetherai-go studio · code

Your SDK build had a failure in the test CI job, which is a regression from the base state.
generate ✅ → build ⏭️ → lint ✅ → test ❗

go get github.com/stainless-sdks/togetherai-go@374f51bb529fd6271283a4b25a63b5e4f80dfe6c

⚠️ togetherai-typescript studio · conflict

Your SDK build had at least one warning diagnostic.

✅ togetherai-terraform studio · code

Your SDK build had at least one "note" diagnostic.
generate ✅ → lint ✅ → test ✅

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Last updated: 2026-04-25 19:51:48 UTC