Vellum
Vellum is a developer platform for building, testing, and deploying large language model applications in production environments.
About this data
Updated June 29, 2026
Overall Pulse Score
-12 over this period
A 0-100 index summarizing the tone of 170 relevant public mentions gathered from public online communities across 16 weeks in the selected period. It measures online sentiment, not a rating of the product's quality.
Weekly Sentiment Trend
Pulse Score by week over the selected period. Each point is one complete week of mentions.
This week in public discussion
Sentiment around Vellum over the recent period trended negative, with bug reports and reliability concerns dominating discussion by a wide margin. Commenters frequently described lagging, installation failures, and workflow issues that appeared to affect day-to-day usability. Some praise did surface, with several mentions highlighting specific features and the interface, and discussion also focused on anticipated additions like AI integration and daemon support. Overall community tone remained skeptical, with complaints outnumbering positive remarks across the period.
Read the deeper analysisAI-generated summary of public online discussion during this period. It reflects the tone of that discussion, not facts about the product or our views.
Sentiment mix by week
How the tone of public discussion splits each week.
Ringed points mark weeks with unusually high discussion volume, more than double this product's typical week.
Most-discussed praise
Most-discussed complaints
Themes across the selected period, with mention counts.
How Vellum compares
Pulse Score over the selected period versus the top tracked competitors in Coding.
Where the mentions come from
Share of the 170 relevant public mentions in the selected period, by source.
Sample public mentions
Showing 5 of 170 analyzed public mentions in this period, with links to the original source. We do not reproduce full threads.
“Conversion and support for Vellum package manager. Hey there! I love and daily a number of these hacks, but sadly this rmhacks project is incompatible with the bettertoc hack within Vellum. I'm currently struggling since the hacks I use in your project are not ones that are incom...”
“Failed to install qemu-user-static using apt-get!. Downloading packages via reManager... Downloading alpine-chroot-install (1/2)... Transferring alpine-chroot-install (1/2)... Downloading alpine-chroot (2/2)... Transferring alpine-chroot (2/2)... Installing packages... Installing...”
“Installation on remarkable 2 - documentation is a bit short. So I have followed the installation steps in the documentation: Install Vellum vellum install koreader I did that, but now what? How do I launch koreader? Searching around, I found that I might need a "launcher", and ap...”
“How to start an application?. Alright, I installed koreader and appload using vellum. Now, the README states: To put new apps on the tablet, place their directories in /home/root/xovi/exthome/appload/. I have verified that this is the case: To start an application as a window, lo...”
“Managed Gemini embeddings backend returning HTTP 500 — breaks memory v2 skill/CLI-command seeding at startup. ### What happened? Summary The managed Gemini embeddings API is repeatedly returning HTTP 500 ("Internal server error"). This causes memory v2 background seeding (skill s...”
165+ more analyzed mentions, full history, and theme breakdowns are part of Pro.
Get ProDeeper analysis
- Bugs and reliability concerns dominated the conversation and overwhelmed positive signals across the four-week window.
- Sentiment was volatile rather than steadily declining, with a sharp mid-May rebound followed by a late-period retreat.
- Opinion was divided between engaged commenters who praised feature direction and newer users reporting performance and usability friction.
- Feature praise existed but remained a clear minority voice against a backdrop of installation, lag, and workflow reliability complaints.
| Praise theme | Mentions |
|---|---|
| Strong features | 15 |
| New releases | 8 |
| Feature requests | 8 |
| Desktop app | 3 |
| Polished UI | 3 |
| Complaint theme | Mentions |
|---|---|
| Bugs | 49 |
| Reliability | 30 |
| Missing features | 22 |
| Feature requests | 12 |
| UI frustrations | 7 |
Discussion around Vellum over the past four weeks was dominated by bug reports and reliability concerns, with those two complaint themes accounting for the large majority of negative mentions. Commenters described installation failures, browser lag severe enough to affect day-to-day use, and workflow processes that stalled or produced inconsistent results across repeated runs. Several mentions pointed to tool registry gaps where installed components were not surfacing correctly at runtime, and at least one commenter tied a recent update directly to a noticeable performance drop. The overall tone in complaint-heavy threads was frustrated rather than hostile, but the volume of reliability-related posts gave the conversation a noticeably worn-down quality.
On the positive side, a smaller but vocal cluster of commenters expressed enthusiasm about feature direction. Praise centered on specific capabilities, and several mentions referenced new releases in an anticipatory or approving tone. Feature requests appeared alongside praise in a pattern suggesting engaged users who see potential but want more. UI mentions were split, with a modest number of positive reactions balanced against a handful of complaints, leaving interface sentiment roughly neutral.
The score trajectory tells a story of sharp volatility rather than steady decline. Discussion opened the window at a low point, spiked strongly in mid-May when mention volume surged, then held near that elevated level briefly before sliding. A pronounced dip at the start of June represented the lowest sentiment reading in the window, after which scores recovered to the mid-50s before gradually retreating again. The current direction heading into the final tracked week was downward, and the overall pulse score edged slightly lower compared to the prior period.
Opinion was most divided around whether recent changes represented progress or regression. Some commenters framed new feature announcements positively, while others in the same window were filing bug reports tied to apparent update activity. Ease-of-use concerns, though fewer in count, reflected a segment of newer users encountering friction that longer-term users may not have flagged as prominently.
AI-generated summary of public online discussion during this period. It reflects the tone of that discussion, not facts about the product or our views.
Member perspectives
Individual opinions from Pro members, posted over time. These are personal member views, not aggregated sentiment data.
Overall Pulse Score
-12 over this period
A 0-100 index summarizing the tone of 170 relevant public mentions gathered from public online communities across 16 weeks in the selected period. It measures online sentiment, not a rating of the product's quality.
Data summary
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