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Full-stack app builders / rank 4 of 20 / cycle 04

v0 benchmark

Fastest median in the cohort and the highest blind design score by a clear margin. The weakness is operational: background jobs in prompt 6 were implemented as fire and forget route handlers in 4 of 5 runs, which is not a queue, and the admin panel needed manual work on staff gating.

Last run: 15 Aug 2026 09:11 UTCNext scheduled run: n/aOfficial sitev0 reviews and ratings

Composite index

78.31

of 100 | withheld vs. cycle 03

Delta not shown for cycle 04: the roster was re-based from one merged ranking into two class boards, so cycle 03 and cycle 04 ranks are not on the same scale. Resumes cycle 05.

At a glance

Composite index

78.31

rank 4 of 20

Rank

#4

of 20 on the full-stack app builders board

Median turn latency

65.2 s per prompt

9.8 min across the full nine prompt spec, derived

Reliability

84.4%

strict pass rate

SEO score

76.0

0 to 100, SEO and GEO axis

Three strongest axes

  • Turn latency score100.0
  • Design output94.0
  • Code ownership86.0

Three weakest axes

  • API and MCP60.0
  • Integrations66.0
  • Value68.0

Median turn latency

65.2 s per prompt

p10 44.9 s, p90 104.1 s

Strict pass rate

84.4%

38 pass, 6 partial, 1 fail

Executions recorded

45

5 runs of 9 prompts

Entry price

USD 30 / user / month

Vendor's own unit and billing period. Never a currency conversion

Per axis subscores

Composite recomputed from these 10 rows: 78.31. That is the arithmetic behind the index, and you can repeat it by hand. Rounding rule: half up at two decimals, applied uniformly to all 37 published products.

Per axis subscores against the roster median, and weighted contribution
AxisSubscore 0 to 100, tick is the roster medianScoreMedianWeight %Contribution
Agent performance80.071.51814.40
Reliability84.471.11815.19
Scalability72.066.0139.36
SEO and GEO76.063.5129.12
API and MCP60.058.095.40
Integrations66.065.085.28
Design output94.078.576.58
Turn latency score100.066.577.00
Value68.074.053.40
Code ownership86.073.032.58

Turn latency distribution

Every recorded prompt duration for v0, in seconds. Median wall clock time for one prompt, not for a whole build. The cyan tick on the whisker is the median.

min 34.5 smax 157.7 s

Spread against the cohort

p10 44.9 s / median 65.2 s / p90 104.1 s

Scale is shared with every product in the cohort, so the bars are directly comparable between pages. Ratio of p90 to median is 1.60x.

Outcome split

38 pass / 6 partial / 1 fail

SEO and GEO measurements

Taken from the public marketing page this product generated in prompt 8, fetched with JavaScript disabled.

HTML bytes, no JS

27.0 KB

27,648 bytes of real text content with scripts blocked

LCP

1,620 ms

Throttled connection, cold cache

CLS

0.040

Cumulative layout shift on load

SEO and GEO subscore

76.0

0 to 100, worth 12 index points on this board

Raw run data: 45 executions

One row per prompt execution. Nothing is aggregated away, nothing is hidden, including the failures.

Raw per run measurements
RunPromptPrompt targetStartedDuration (s)OutcomeNote
R01P01Tenant and user model11 Aug 2026 08:00 UTC79.7pass
R01P02Authentication and session11 Aug 2026 08:03 UTC43.0partialValidation added on the write path only. Read path left unguarded.
R01P03Projects CRUD with tenancy11 Aug 2026 08:06 UTC55.1pass
R01P04Public REST API with keys11 Aug 2026 08:08 UTC47.5pass
R01P05Outbound webhooks with signatures11 Aug 2026 08:11 UTC107.0pass
R01P06Background jobs11 Aug 2026 08:15 UTC57.2partialJobs implemented as fire and forget route handlers. No durable queue, work lost on redeploy.
R01P07Admin panel11 Aug 2026 08:18 UTC68.1pass
R01P08Public marketing surface11 Aug 2026 08:21 UTC45.7pass
R01P09Hardening pass11 Aug 2026 08:24 UTC37.4pass
R02P01Tenant and user model12 Aug 2026 08:00 UTC65.2pass
R02P02Authentication and session12 Aug 2026 08:03 UTC73.0pass
R02P03Projects CRUD with tenancy12 Aug 2026 08:06 UTC60.4pass
R02P04Public REST API with keys12 Aug 2026 08:09 UTC83.8pass
R02P05Outbound webhooks with signatures12 Aug 2026 08:12 UTC88.3pass
R02P06Background jobs12 Aug 2026 08:16 UTC140.6partialJobs implemented as fire and forget route handlers. No durable queue, work lost on redeploy.
R02P07Admin panel12 Aug 2026 08:20 UTC64.2pass
R02P08Public marketing surface12 Aug 2026 08:23 UTC48.4pass
R02P09Hardening pass12 Aug 2026 08:26 UTC45.8pass
R03P01Tenant and user model13 Aug 2026 08:00 UTC70.5pass
R03P02Authentication and session13 Aug 2026 08:03 UTC44.4pass
R03P03Projects CRUD with tenancy13 Aug 2026 08:05 UTC58.3pass
R03P04Public REST API with keys13 Aug 2026 08:08 UTC157.7pass
R03P05Outbound webhooks with signatures13 Aug 2026 08:13 UTC85.8pass
R03P06Background jobs13 Aug 2026 08:16 UTC82.2partialJobs implemented as fire and forget route handlers. No durable queue, work lost on redeploy.
R03P07Admin panel13 Aug 2026 08:20 UTC113.4pass
R03P08Public marketing surface13 Aug 2026 08:24 UTC38.7partialPagination off by one at the final page boundary.
R03P09Hardening pass13 Aug 2026 08:26 UTC48.8failGenerated migration conflicted with the existing schema and was not reconciled.
R04P01Tenant and user model14 Aug 2026 08:00 UTC89.0pass
R04P02Authentication and session14 Aug 2026 08:03 UTC90.8pass
R04P03Projects CRUD with tenancy14 Aug 2026 08:06 UTC56.3pass
R04P04Public REST API with keys14 Aug 2026 08:09 UTC53.4pass
R04P05Outbound webhooks with signatures14 Aug 2026 08:12 UTC55.5pass
R04P06Background jobs14 Aug 2026 08:15 UTC77.1pass
R04P07Admin panel14 Aug 2026 08:19 UTC108.7pass
R04P08Public marketing surface14 Aug 2026 08:22 UTC50.8pass
R04P09Hardening pass14 Aug 2026 08:25 UTC34.5pass
R05P01Tenant and user model15 Aug 2026 08:00 UTC46.4pass
R05P02Authentication and session15 Aug 2026 08:02 UTC95.0pass
R05P03Projects CRUD with tenancy15 Aug 2026 08:06 UTC81.8pass
R05P04Public REST API with keys15 Aug 2026 08:09 UTC99.7pass
R05P05Outbound webhooks with signatures15 Aug 2026 08:13 UTC81.3pass
R05P06Background jobs15 Aug 2026 08:16 UTC55.8partialJobs implemented as fire and forget route handlers. No durable queue, work lost on redeploy.
R05P07Admin panel15 Aug 2026 08:19 UTC85.5pass
R05P08Public marketing surface15 Aug 2026 08:23 UTC53.3pass
R05P09Hardening pass15 Aug 2026 08:25 UTC79.6pass

Pricing

Free tier with monthly credits. Plus from USD 30 per user per month with usage based credits above the allowance.

Entry price
USD 30 / user / month
Value subscore
68.0
Index points per euro
3.05

Entry price is the vendor's own published figure, fetched 06 Sep 2026, never a currency conversion. The currency label is the vendor's own except where the pricing note above records that this lab inferred it. Index points per euro is computed from a separate, euro-normalised figure used only for the Value axis: Converted at the European Central Bank euro reference rate of 1.1699 US dollars to the euro, August 21, 2026.

Capabilities as measured

stack
Next.js App Router
deploy
Hosted deploy with instant previews
database
Bring your own, first party Postgres integration
auth
Library based, wired on request
background jobs
Partial, no durable queue by default
webhooks
Hand written, no built in delivery log
rest api
Route handlers, no key management by default
mcp server
Yes
export code
Full source, standard framework output
custom domain
Yes
ssr
Server rendered by default

Screenshot

v0 landing page, captured by the lab on 14 Aug 2026 at 1440 by 900. Stored locally, never hotlinked.

v0 landing page, captured by the lab at 1440 by 900

v0, captured 14 Aug 2026.

Sources and fetch dates

Every claim on this page traces to one of these.

Sources with fetch dates
SourceURLFetched
v0 pricing pagehttps://v0.app/pricing14 Aug 2026
v0 product sitehttps://v0.app14 Aug 2026
LLM Tier run harness outputhttps://www.llm-tier.com/api/runs.json14 Aug 2026

Rich results carry this composite as 3.9 on a 0 to 5 scale because that is the only scale the format accepts. The number on this page, 0 to 100, is the real one.

v0 head to head

Reader index

Voted by readers with an account, one score per person per axis. Published beside the lab index, never inside it.

Reader index

80.68

Lab index

78.31

6 readers, 54 axis scores, last change 30 Aug 2026. Readers rate v0 2.4 points above the measurement.

Seeded at launch

The reader scores, lab notes and open ratings published here were written by this lab in August 2026 to populate the reader column before the site had readers. They are not customer submissions, they are not vendor supplied and nobody was paid for them. Anything submitted since then comes from a registered account. The lab index is measured from logged runs and is unaffected either way.

Reader mean against the measured lab subscore for each axis
AxisWeightLabReadersVotesReader mean
Agent performance18%80.085.26
Reliability18%84.488.56
Scalability13%72.081.65
SEO and GEO12%76.085.76
API and MCP9%60.056.84
Integrations8%66.076.26
Design output7%94.0100.05
Turn latency score7%100.053.76
Value5%68.075.56
Code ownership3%86.093.34

The reader index is a weighted mean of reader submitted axis scores using the published index weights, renormalised over the axes readers have scored. It is never blended into the lab index. How this works.

Open rating mean

79.50

2 published open ratings, submitted without an account

Lab index

78.31

Measured, not voted

Gap to the measurement

1.19

Positive means open raters put it above the measurement

What agent performance looked like in practice

Fastest median in the cohort and the highest blind design score by a clear margin. The weakness is operational: background jobs in prompt 6 were implemented as fire and forget route handlers in 4 of 5 runs, which is not a queue, and the admin panel needed manual work on staff gating.

Across 45 recorded executions this product met the published pass criterion cleanly 38 times, partially 6 times and failed 1 times. The rows above carry the reviewer note for every non clean outcome, which is the only way to tell a product that fails loudly from one that fails quietly.