LSLaunch SentinelReports
Early access — every report is free right now.
Home / Reports / Jo
J
VC Intelligence Report

Jo

AI Tools — Jo is an AI-native language designed to catch prompt injection at compile-time, ensuring secure …
AI Tools
● Verified live
Verdict from HTTP liveness real
last probed Aug 24, 2026
Pulse 45.8 · 2/4
45.8
Pulse Index
2/4 families · real
-1.7
30-day Δ
pulse momentum · real
24
HTTP probes
liveness history · real
8
Functional tags
observed attributes · real
Risk read derived from observed signals

Verified live by HTTP probe across 24 observations. Pulse momentum is negative over 30 days (-1.7) — observed activity is receding.

HTTP liveness

real
24 probes · Jun 9, 2026Aug 24, 2026aliveredirecteddeadunverified

Signal telemetry

4 families · 2 observed · observed only
Liveness probereal
alive in 100% of 24 probesavg response 1103 ms
Developer tractionreal
https://github.com/typescope/jo
commit recency not yet snapshotted · github family active in Pulse
Press & sentimentchecked · none
No coverage found in the tracked press corpus. Absence of press is itself a signal at this stage.
Web footprintreal
resolved host
github.com
edge
direct origin
server
github.com
Tranco rank
unranked
Domain age & certificate data not yet collected

Site intelligence synthesized from scraped pages

from the product's own site · scraped pages only
Analyst commentary

The provided pages do not contain a clear description of the product or its target users, so the positioning is indeterminate. No pricing details are shown, leaving the pricing model unknown. The release page lists a version tag v0.12.4 but does not provide a release date, so the most recent shipping cadence cannot be established. There is no careers page or hiring information, so the hiring signal is unknown. Overall, the lack of product, pricing, and hiring data makes it difficult to evaluate the product's value or risks.

Synthesized from this product's own scraped pages · openai/gpt-oss-20b · Aug 2026 · pages: homepage · pricing · changelog

Analyst read

generated from the observed metrics above · no external narrative

Jo's listed site resolved live when we last probed it on Aug 24, 2026, so we mark it verified alive. Its Pulse Index is 45.8 of 100, built from 2 of 4 observed signal families. Observed footprint: 8 functional tags. It has no curated competitive-alternative edges yet, so the comparable set below is functional tag-similarity — read it with the confidence flags.

Comparable set

curated alternatives → functional tag-similarity
CompanyBasisOverlapPulse30d ΔStatus
MindFlockai-toolssimilar100%49.9● live
Continuumai-toolssimilar89%48.7● live
Forensicai-toolssimilar89%40.00.0● live
Prime Agentai-toolssimilar89%32.8● live
I implemented the Kimi K3 paper from scratch in PyTorchai-toolssimilar89%51.5● live
Flawlessai-toolssimilar88%15.1-1.6— unverified
Claude Code built my ESP32 and fixed its UI by looking at a webcamai-toolssimilar88%49.9+8.8● live
Symbio self fineai-toolssimilar88%40.0● live

Confidence reflects source and category coherence: curated = an editorially linked alternative; similar = strong functional tag-overlap in the same category; tag-overlap = shared tags only and may be noisy. Overlap is the shared functional-tag ratio (Jaccard) for tag-matched rows. Pulse is the observed-activity index real and 30d Δ its signed month change; a dash means insufficient observed history, never zero.

Structure

observed attributes
Business modelunknown
Liveness tierquiet
Competitive alternativesnone linked
Open sourceNo
Public APINo
Free tierNo
Enterprise tierNo

Funding & team

not in source

No disclosed funding in our sources. Funding data covers only ~1% of the corpus (462 rounds across 79K products), so absence here is unknown, not zero— we don't estimate a number we can't source.

RAW TELEMETRY last 14 probes
PROBEDHTTPORIGIN → RESOLVEDSERVERMSVERDICT
2026-08-24 13:14Z200github.comgithub.com786alive
2026-08-13 13:45Z200github.comgithub.com1016alive
2026-08-09 18:54Z200github.comgithub.com539alive
2026-08-08 03:57Z200github.comgithub.com558alive
2026-07-30 20:11Z200github.comgithub.com639alive
2026-07-26 16:52Z200github.comgithub.com492alive
2026-07-18 13:36Z200github.comgithub.com564alive
2026-07-13 13:25Z200github.comgithub.com3031alive
2026-07-04 15:30Z200github.comgithub.com1138alive
2026-07-03 00:08Z200github.comgithub.com2270alive
2026-06-28 12:48Z200github.comgithub.com1580alive
2026-06-24 13:18Z200github.comgithub.com1233alive
2026-06-23 12:47Z200github.comgithub.com624alive
2026-06-22 12:46Z200github.comgithub.com974alive
Full redirect chains, response headers, and DNS records are not captured by the current probe.
Launch Sentinel tear sheet · Jo · as of 2026-08-28 · launchsentinel.com/reports/hn-48412229-jo · liveness, pulse and press figures are observed data with provenance shown per panel.