Claude voice mode moves beyond Haiku to Opus and Sonnet, gains connectors and more languages
On 2026-07-23 Anthropic let Claude's voice mode run on Opus, Sonnet or Haiku (previously Haiku only), call connected tools mid-conversation (Gmail, Calendar, Slack, Canva, Notion) and speak more languages, in public beta on mobile, desktop and web. Anthropic still has no speech model or speech API of its own: voice mode remains a speech-to-text / text-to-speech wrapper whose provider is undisclosed.
Key facts
- Voice mode uses the fastest version of the last model used in chat; model can be switched mid-conversation
- Free users: Haiku with one connected app; paid users: all three model families and multiple connectors
- Languages at launch included English, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Portuguese (BR), Spanish
- Fable models are excluded from voice mode (Claude Help Center)
- No Anthropic TTS/STT or realtime audio API exists as of 2026-09-29; TTS/STT vendor not disclosed (TechCrunch)
What happened
Two weeks after OpenAI's full-duplex GPT-Live, Anthropic upgraded Claude's voice mode by letting its frontier models, not just Haiku, answer spoken questions and act through connectors. The underlying cascaded voice pipeline was not replaced.
Why it matters
It shows the two strategies in voice: OpenAI and Google build native audio models, while Anthropic reuses its text models with off-the-shelf speech components and competes on reasoning and tool use rather than conversational feel.
Changelog
- 2026-09-29: created
Related posts (1)
- Claude Claude @claudeai · x · 2026-07-23
Cited as a source by: 2026-07-23-claude-voice-mode-opus-sonnet
Related events
Sources (4)
- officialClaude blog - Think through hard problems in voice mode
- officialClaude on X - voice conversations now use Opus and Sonnet
- docsClaude Help Center - Use voice mode
- pressTechCrunch - Anthropic updates Claude voice mode with more capable models
id: 2026-07-23-claude-voice-mode-opus-sonnet · updated 2026-09-29 · open in the interactive timeline