How fast is Emergent?

The median turn latency is 144.6 seconds per prompt, not per whole build, which derives to 21.7 min across the full nine prompt specification. That is a tenth percentile of 81.7 seconds and a ninetieth percentile of 309.3 seconds across 45 recorded executions.

How reliable is Emergent?

80.0% of recorded executions met the published pass criterion with no operator intervention. 3 were partial and 6 failed outright. Every one of those rows is published on this page.

Can I export the code from Emergent?

Full source export. The code ownership subscore is 72.0 out of 100.

Full-stack app builders / rank 10 of 20 / cycle 04

Emergent benchmark

Long autonomous runs that keep working without supervision, which is exactly what prompts 5 and 6 reward. It is the slowest median we recorded and the spread is wide: the gap between p10 and p90 is the largest in the cohort, so planning around its timings is hard.

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

Composite index

68.68

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

68.68

rank 10 of 20

Rank

#10

of 20 on the full-stack app builders board

Median turn latency

144.6 s per prompt

21.7 min across the full nine prompt spec, derived

Reliability

80.0%

strict pass rate

SEO score

58.0

0 to 100, SEO and GEO axis

Three strongest axes

Reliability80.0
Agent performance79.0
Value74.0

Three weakest axes

Turn latency score45.1
SEO and GEO58.0
API and MCP61.0

Median turn latency

144.6 s per prompt

p10 81.7 s, p90 309.3 s

Strict pass rate

80.0%

36 pass, 3 partial, 6 fail

Executions recorded

5 runs of 9 prompts

Entry price

USD 20 / month, billed monthly

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

Per axis subscores

Composite recomputed from these 10 rows: 68.68. 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.

Weight table

Per axis subscores against the roster median, and weighted contribution
Axis	Score	Median	Weight %	Contribution
Agent performance	79.0	71.5	18	14.22
Reliability	80.0	71.1	18	14.40
Scalability	66.0	66.0	13	8.58
SEO and GEO	58.0	63.5	12	6.96
API and MCP	61.0	58.0	9	5.49
Integrations	63.0	65.0	8	5.04
Design output	71.0	78.5	7	4.97
Turn latency score	45.1	66.5	7	3.16
Value	74.0	74.0	5	3.70
Code ownership	72.0	73.0	3	2.16

Turn latency distribution

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

min 38.1 smax 409.2 s

Spread against the cohort

p10 81.7 s / median 144.6 s / p90 309.3 s

Scale is shared with every product in the cohort, so the bars are directly comparable between pages. Ratio of p90 to median is 2.14x.

Outcome split

36 pass / 3 partial / 6 fail

SEO and GEO measurements

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

SEO and GEO leaderboard

HTML bytes, no JS

8.0 KB

8,192 bytes of real text content with scripts blocked

LCP

3,120 ms

Throttled connection, cold cache

CLS

0.140

Cumulative layout shift on load

SEO and GEO subscore

58.0

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.

JSON

Raw per run measurements
Run	Prompt	Prompt target	Started	Duration (s)	Outcome	Note
R01	P01	Tenant and user model	11 Aug 2026 08:00 UTC	141.8	pass
R01	P02	Authentication and session	11 Aug 2026 08:04 UTC	409.2	pass
R01	P03	Projects CRUD with tenancy	11 Aug 2026 08:13 UTC	129.9	fail	Task abandoned by the agent with no artifact produced.
R01	P04	Public REST API with keys	11 Aug 2026 08:17 UTC	170.8	pass
R01	P05	Outbound webhooks with signatures	11 Aug 2026 08:22 UTC	220.4	pass
R01	P06	Background jobs	11 Aug 2026 08:27 UTC	118.3	pass
R01	P07	Admin panel	11 Aug 2026 08:31 UTC	99.7	pass
R01	P08	Public marketing surface	11 Aug 2026 08:35 UTC	150.5	pass
R01	P09	Hardening pass	11 Aug 2026 08:40 UTC	146.6	partial	Delivered the main path, missed the boundary case named in the pass criteria.
R02	P01	Tenant and user model	12 Aug 2026 08:00 UTC	100.5	pass
R02	P02	Authentication and session	12 Aug 2026 08:03 UTC	104.5	pass
R02	P03	Projects CRUD with tenancy	12 Aug 2026 08:07 UTC	119.6	fail	Generated migration conflicted with the existing schema and was not reconciled.
R02	P04	Public REST API with keys	12 Aug 2026 08:11 UTC	227.1	pass
R02	P05	Outbound webhooks with signatures	12 Aug 2026 08:17 UTC	363.6	pass
R02	P06	Background jobs	12 Aug 2026 08:25 UTC	315.5	pass
R02	P07	Admin panel	12 Aug 2026 08:32 UTC	150.3	fail	Agent looped on the same edit for the full timeout window of 20 minutes.
R02	P08	Public marketing surface	12 Aug 2026 08:37 UTC	64.9	pass
R02	P09	Hardening pass	12 Aug 2026 08:40 UTC	300.0	pass
R03	P01	Tenant and user model	13 Aug 2026 08:00 UTC	38.1	pass
R03	P02	Authentication and session	13 Aug 2026 08:02 UTC	273.9	pass
R03	P03	Projects CRUD with tenancy	13 Aug 2026 08:09 UTC	46.4	fail	Build did not start after deploy. Recorded as a fail with the log preserved.
R03	P04	Public REST API with keys	13 Aug 2026 08:11 UTC	255.4	pass
R03	P05	Outbound webhooks with signatures	13 Aug 2026 08:18 UTC	191.5	pass
R03	P06	Background jobs	13 Aug 2026 08:23 UTC	125.2	pass
R03	P07	Admin panel	13 Aug 2026 08:27 UTC	206.6	partial	Admin panel built but staff gating was advisory only. A member account could open /admin.
R03	P08	Public marketing surface	13 Aug 2026 08:32 UTC	150.9	pass
R03	P09	Hardening pass	13 Aug 2026 08:37 UTC	91.3	pass
R04	P01	Tenant and user model	14 Aug 2026 08:00 UTC	127.4	pass
R04	P02	Authentication and session	14 Aug 2026 08:04 UTC	127.7	pass
R04	P03	Projects CRUD with tenancy	14 Aug 2026 08:08 UTC	196.8	pass
R04	P04	Public REST API with keys	14 Aug 2026 08:13 UTC	192.9	pass
R04	P05	Outbound webhooks with signatures	14 Aug 2026 08:18 UTC	99.7	pass
R04	P06	Background jobs	14 Aug 2026 08:22 UTC	392.8	fail	Agent looped on the same edit for the full timeout window of 20 minutes.
R04	P07	Admin panel	14 Aug 2026 08:30 UTC	150.9	pass
R04	P08	Public marketing surface	14 Aug 2026 08:35 UTC	129.9	pass
R04	P09	Hardening pass	14 Aug 2026 08:39 UTC	106.4	fail	Agent looped on the same edit for the full timeout window of 20 minutes.
R05	P01	Tenant and user model	15 Aug 2026 08:00 UTC	82.3	pass
R05	P02	Authentication and session	15 Aug 2026 08:03 UTC	186.9	pass
R05	P03	Projects CRUD with tenancy	15 Aug 2026 08:08 UTC	144.6	partial	Pagination off by one at the final page boundary.
R05	P04	Public REST API with keys	15 Aug 2026 08:12 UTC	81.3	pass
R05	P05	Outbound webhooks with signatures	15 Aug 2026 08:16 UTC	325.5	pass
R05	P06	Background jobs	15 Aug 2026 08:23 UTC	235.2	pass
R05	P07	Admin panel	15 Aug 2026 08:29 UTC	103.7	pass
R05	P08	Public marketing surface	15 Aug 2026 08:33 UTC	63.3	pass
R05	P09	Hardening pass	15 Aug 2026 08:36 UTC	87.3	pass

Pricing

Credit based. Entry bundle from USD 20 per month. No free tier completed the full specification.

Entry price: USD 20 / month, billed monthly
Priced from: vendor pricing page
Value subscore: 74.0
Index points per euro: 4.02

Entry price is the vendor's own published figure, fetched 21 Aug 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: Python and JavaScript services
deploy: Hosted deploy
database: Provisioned per project
auth: Generated, library based
background jobs: Yes
webhooks: Generated on request
rest api: Generated, conventions vary between runs
mcp server: Yes
export code: Full source export
custom domain: Yes
ssr: Mixed, depends on the plan the agent chooses

Screenshot

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

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

Emergent, captured 14 Aug 2026.

Sources and fetch dates

Every claim on this page traces to one of these.

Sources with fetch dates
Source	URL	Fetched
Emergent pricing page	https://emergent.sh/pricing	14 Aug 2026
Emergent product site	https://emergent.sh	14 Aug 2026
LLM Tier run harness output	https://www.llm-tier.com/api/runs.json	14 Aug 2026

Rich results carry this composite as 3.4 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.

Emergent head to head

emergent vs replit

Reader index

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

Score it or read the notes

Reader index

not rated yet

Lab index

68.68

2 readers have scored 100% of the index weight so far. A reader index is published at 3 voters and 50% coverage.

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
Axis	Weight	Lab	Readers	Votes
Agent performance	18%	79.0	70.0	2
Reliability	18%	80.0	69.5	2
Scalability	13%	66.0	54.5	2
SEO and GEO	12%	58.0	51.0	2
API and MCP	9%	61.0	52.5	2
Integrations	8%	63.0	51.5	2
Design output	7%	71.0	68.0	1
Turn latency score	7%	45.1	10.0	2
Value	5%	74.0	65.0	1
Code ownership	3%	72.0	58.5	2

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

72.50

2 published open ratings, submitted without an account

Lab index

68.68

Measured, not voted

Gap to the measurement

3.82

Positive means open raters put it above the measurement

What agent performance looked like in practice

Across 45 recorded executions this product met the published pass criterion cleanly 36 times, partially 3 times and failed 6 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.