From the experiment

Do coding agents recommend Upstash?

Upstash was chosen in 4% of 215 judged cloud sessions, ranking fifth. Measured with Claude Code, Codex and Cursor.

Published September 3, 2026 Read as Markdown

Upstash was chosen in 4% of 215 judged cloud sessions, ranking fifth. It was also raised as a candidate in 27 further sessions without being chosen.

This page reports what happened when Claude Code, Codex and Cursor had to solve a problem in cloud inside a realistic codebase. Not what a chat assistant says about Upstash. What an agent actually installed.

One thing to read first: every one of those wins came from a single codebase. That is a result about one repository rather than about cloud in general, and the splits below cannot separate the two. Treat them as a description of that repository.

The numbers

CategoryCloud
Sessions in the category215
Sessions where Upstash was chosen8
Install share4%
Rank in category5 of 8
Codebases it won in1
Raised as a candidate, not chosen27
Chosen when considered23%
Siteupstash.com

By agent

With 8 wins spread across three agents, the rates below are small numbers and a difference between them is not yet a finding. They are here because the direction is worth knowing, not because the gap is established.

AgentSessionsChose UpstashShare
Claude Code7257%
Codex7234%
Cursor7100%

By who was asking

Upstash performs similarly across the four kinds of buyer, from 0% to 6%. That is unusual: the category leader changed with the persona in 14 of the 18 categories we measured.

Who is askingSessionsChose UpstashShare
Senior engineer14386%
Enterprise team7200%

What Upstash was up against

The full ranking in cloud, from the same sessions:

#ProductRuns wonShare
1AWS13362%
2Google Cloud3617%
3Cloudflare178%
4Inngest84%
5Upstash (this page)84%
6Vercel Queues31%
7Cloudflare + Upstash21%
8Render10%

What this means

This is an integration problem, not a presence problem. Agents raised Upstash in 27 sessions and chose it in 8, so it reaches the shortlist and then loses. Something at the last step is costing the session, and in our data that is usually a quickstart that does not run when pasted, documentation describing an interface that changed, or a package name that does not match the product name.

That is the cheaper of the two problems to have. The reason is written down in each losing transcript.

Where these numbers come from

The 215 sessions in cloud are part of a published set of 5,292, run with real coding agents inside realistic codebases and judged blind. The full method is on one page: how we measured this.

Every cloud run can be replayed on the board.

If you work on Upstash: the judge recorded a reason for every session where it was raised and passed over. Those reasons are in the transcripts.

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Common questions

Do coding agents recommend Upstash?

Yes. Upstash was chosen in 8 of the 215 judged sessions in cloud, a 4% install share, ranking fifth in its category.

Does Claude Code recommend Upstash?

In 5 of the 72 sessions in cloud run with Claude Code, which is 7%.

Do different coding agents treat Upstash differently?

Not much. The three agents chose it at similar rates, between 0% and 7% of their runs.

How was this measured?

Real coding agents at pinned versions were run in sandboxes inside 51 realistic codebases and asked to solve real tasks. A simulated project owner approved or questioned each recommendation before any code was written, and a judge from a model family that builds none of the agents read every session blind.

How often is Upstash considered but not chosen?

It was raised as a candidate in 27 sessions without being chosen, and chosen in 8. That is a 23% conversion from considered to chosen.

Where this comes from

Armature ran 5,292 judged sessions with Claude Code, Codex and Cursor inside 51 realistic codebases, and published every run. The numbers on this page come from that work.

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