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Grain

COMMS
Velocity2.5

Grain learns voices, so in-person and shared-mic meetings finally get reliable speaker labels.

meeting-recordingspeaker-identificationtranscriptionmcp-toolsin-person-capture
Current state
Voice Signatures let Grain recognise speakers by voice rather than by audio channel, so transcripts label who said what even when several people share one mic or a capture comes from an unknown source. It ships alongside an upgraded transcription model, a split between workspace and account settings, fewer false positives from trackers, and a cleaner permission screen on shared meeting links. July's release put Grain inside ChatGPT and added MCP tools.
Where it's heading
Having spent the spring and summer making Grain's data reachable from outside — MCP tools, bulk AI actions, an app inside ChatGPT — the work has turned to whether that data is worth reaching. Speaker attribution is the weak point in any transcript that did not come from a video call with one participant per stream, and Grain is explicit that better labels mean cleaner context for whatever model consumes them, its own or someone else's. In-person and local captures are the cases this unlocks, which is where meeting recorders built around a bot joining a call have the least to offer.
Prediction
Expect voice identity to become a workspace-level asset rather than a per-meeting inference — recognising a colleague across every recording without re-labelling. How signatures are enrolled and what happens to them when someone leaves is not addressed in this entry.

Recent moves

  1. 27d ago

    Voice Signatures label who spoke, plus better transcription

    Voice Signatures identify speakers by voice, fixing attribution for shared-mic and in-person captures where channel-based labelling fails, alongside an upgraded transcription model and more accurate trackers. It is quality work on the raw material the MCP and ChatGPT integrations expose.

  2. 2mo ago

    Grain in ChatGPT + Smarter Notes and MCP Tools

    ⚡ SPARK

    Becoming a ChatGPT plugin with MCP tools and smarter notes is the fullest expression of Grain's meeting-layer-for-AI strategy, moving from a send-to button to living inside the assistant.

  3. 3mo ago

    Opt-in meeting notifications, better playlists, and more!

    Desktop meeting-detection notifications prompt one-click recording of ad-hoc calls even with auto-capture off, plus playlist improvements, tightening the capture layer beneath the AI-integration push.

  4. 4mo ago

    Grain MCP + Bulk AI Actions and API Updates

    ⚡ SPARK

    The May Grain MCP launch with bulk AI actions and one-click open-in-Claude/ChatGPT set the meeting-layer direction that the ChatGPT plugin now extends.

  5. 5mo ago

    New Home Page + Improved Zapier Integration

    A consolidated home page merging library and calendar with persistent filters and de-duplicated auto-captures, plus a better Zapier integration; solid UX cleanup on the capture side.

  6. 5mo ago

    New Home Page + Improved Zapier Integration

    A near-duplicate feed entry of the same home-page and Zapier release, differing only by timestamp; no additional change.

    View source ↗