Letta
Is Letta still running? Yes — it answered the last roll call (2026-08-29). Current entry price on our tape: $20/mo (read 2026-08-29). Every number below is dated and sourced.
MemGPT commercialized — stateful agent memory
The change log — what actually moved
ONLY DAYS WITH CHANGES APPEAR. QUIET DAYS ARE DATA TOO — THEY JUST DON’T GET A ROW.
NOTHING ON THE TAPE YET — THE INSTRUMENT ONLY RECORDS WHAT ACTUALLY CHANGES.
The open call on this board
NO OPEN CALL ON THIS BOARD — THE DESK ONLY STAKES A CLAIM WHEN THE EVIDENCE MOVES.
The facts on file
| Traction (verified) | $10M raised @ $70M valuation · 22k+ stars [FDR]+[3P] source |
|---|---|
| Team | CharlesPacker+Berkeley |
| Launched | 2024-09 |
| On the books since | 2026-06-30 |
| Entry price | $20/mo · 3 plans pricing page · read 2026-08-29 |
| Sitemap pages | 63 sitemap.xml · read 2026-08-29 |
| GitHub stars | 24480 public GitHub count · read 2026-08-29 |
Instrument readings link to their target and carry the date we read them; roster context (team, launch) is filed at intake. Where we can’t verify, the cell says UNKNOWN — never a guess. Dispute a number: /corrections/.
The field — AI Memory Layer, 7 on the books
| Board | Role | Entry price | Status |
|---|---|---|---|
| BasicMemory | — | $12/mo | WATCHING |
| Cognee | — | $5 (usage floor) | PROVEN |
| Goldfish | — | — | WATCHING |
| Letta — this board | — | $20/mo | PROVEN |
| Mem0 | — | $19/mo | PROVEN |
| Supermemory | — | $5/mo | PROVEN |
| Unabyss | — | $13/mo | WATCHING |
FULL FIELD COMPARISON: AI MEMORY LAYER →
TRY LETTA →PLAIN LINK, NO AFFILIATE TAG TODAY. IF THAT EVER CHANGES, THIS LINE WILL SAY SO AND THE LINK WILL CARRY rel="sponsored". THE VERDICTS ABOVE DON’T CARE EITHER WAY.
Sources on this page
- [FDR]+[3P] Traction figure — https://techcrunch.com/2024/09/23/letta-one-of-uc-berkeleys-most-anticipated-a…
- [OBS] Daily instrument readings (homepage, pricing page, sitemap.xml, GitHub) — read at 02:00 UTC, on the books since 2026-06-30
Dispute a number? /corrections/ — handled in public within 48 hours.