Vellum
Vellum is a developer platform for building, testing, and deploying large language model applications in production environments.
About this data
Updated August 3, 2026
Overall Pulse Score
-7 over this period
A 0-100 index summarizing the tone of 171 relevant public mentions gathered from public online communities across 17 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
Recent discussion around Vellum was dominated by bug reports and reliability concerns, with commenters citing issues like browser lag and tool registry problems as recurring frustrations. Several mentions noted new feature activity on the development side, including praise for planned additions around CLI tooling, AI integration, and TUI improvements. The pulse score edged upward from the prior period, though commenters appeared split between interest in the roadmap and dissatisfaction with current stability.
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 171 relevant public mentions in the selected period, by source.
Sample public mentions
Showing 5 of 171 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...”
“memory-v3-migration: eval gate is non-convergent + two silent workflow-leaf failures. ## Context User feedback: the vellum-memory-v3-migration skill stalled at the **eval gate** (Step 8). The blind-judge tally would not converge across re-runs of a nominally identical comparison ...”
“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...”
166+ more analyzed mentions, full history, and theme breakdowns are part of Pro.
Get ProDeeper analysis
- Bug and reliability complaints dominated the conversation by a wide margin over the four-week window.
- Sentiment followed an unstable path, dropping sharply in early June before partially recovering and then softening again.
- Feature announcements and roadmap previews drew genuine enthusiasm from some commenters, creating a split between optimism about direction and frustration with current stability.
- Performance lag and missing plugin tools were the most pointed individual complaints surfacing in discussion.
| 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 has been dominated by reliability and bug concerns, with commenters repeatedly surfacing issues that appear to undercut day-to-day usability. Bug reports accounted for the single largest complaint theme across the window, and reliability concerns followed close behind, together suggesting that a meaningful portion of the conversation was shaped by users running into friction rather than celebrating the product. One mention captured the frustration plainly, with a commenter describing significant browser lag appearing shortly after joining and attributing it to a recent update. Installed-plugin tools going missing from the live tool registry was another specific grievance that surfaced, pointing to integration-level instability that several mentions found difficult to work around.
On the positive side, a cluster of feature-focused discussion offered a counterweight. Commenters engaged with a range of planned or newly released capabilities, including configuration presets, a diagnostics command, a PTY overlay for native database REPLs, a statusline renderer for terminal environments, a JSON-RPC daemon for keeping connections warm, and an optional AI layer requiring a user-supplied key. The tone around these items leaned enthusiastic, with discussion suggesting genuine interest in the product's technical direction.
The score trajectory over the window tells a story of instability rather than steady improvement. Sentiment slid from the mid-to-upper forties in mid-May through a sharp drop into the high teens in early June, then recovered strongly before fading again into the mid-thirties by late June. Opinion appeared most divided around whether feature momentum could offset the reliability problems, with some commenters clearly engaged by the roadmap while others focused almost entirely on bugs and performance degradation.
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
-7 over this period
A 0-100 index summarizing the tone of 171 relevant public mentions gathered from public online communities across 17 weeks in the selected period. It measures online sentiment, not a rating of the product's quality.
Data summary
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Score-level preview from live weekly tracking.
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