Buzz vs Symphony
Buzz (Block Open Source) and Symphony (OpenAI) side by side on public data, as of Oct 10, 2026.
Buzz has 1.3x the GitHub stars of Symphony (35.8K against 27.6K). Buzz shipped 50 stable releases in the past 90 days. Symphony shipped 3 stable releases in the past 90 days.
Side-by-side numbers
| Metric | Buzz | Symphony |
|---|---|---|
| Gid Score | 43 | 76 |
| Overall rank | #98 | #5 |
| Downloads, last 7 days | — | — |
| Downloads, 7-day change | — | — |
| Downloads, 30-day change | — | — |
| VS Code installs | — | — |
| Marketplace rating | — | — |
| GitHub stars | 35.8K | 27.6K |
| Homebrew installs, 30 days | — | — |
| Hacker News mentions, 30 days | 0 | 219 |
| Latest stable release | 0.5.28 · yesterday | 0.0.3 · 25d ago |
| Stable releases, 90 days | 50 | 3 |
| Terminal-Bench (best run) | — | — |
| Price | Free (OSS) | Free (OSS) |
| License | Apache-2.0 | Apache-2.0 |
| First released | March 2026 | February 2026 |
| Interfaces | — | — |
| Models |
Trends
Buzz
Self-hostable workspace from Block where people and AI agents share the same channels; messages, workflows, reviews and Git events are signed events on a relay you own (Nostr).
Pricing: Open source under the Apache-2.0 licence; check the website for any paid hosted plans.
Latest release 0.5.28:
- test(desktop): move CSP guards from Rust to the desktop JS suite (#8172) (5142cf6b2a0f44686eeda1ed07905ee3560fd78e)
- fix(desktop): repair the Windows notification shim's false denial on read (#5600) (99924a5a69200d34f5cc67e9b76748d7ece72705)
- feat: raise hosted community limit to fifty (#8186) (8f66f7051c68560feb27dbc74b069c851bc018bd)
- feat(desktop): browse and moderate every community in the Admin Console (#8027) (836e7d0d06789765b4d98a93c2b509a2a0fbd1bf)
Symphony
Symphony turns project work into isolated, autonomous implementation runs, allowing teams to manage work instead of supervising coding agents.
Pricing: Open source under the Apache-2.0 licence; check the website for any paid hosted plans.
Latest release 0.0.3:
- Add Symphony release skill
- Scrub GitHub and GitLab authentication token aliases
- Use Bearer authentication for GitLab API requests
- chore: release Symphony 0.0.3