Coding agents / rank 8 of 17 / cycle 04
Zed benchmark
The fastest median in the index, and the reason is architectural rather than clever prompting: the editor is fast, the diff review is instant and almost no time is lost to interface latency. Correctness sits in the middle of the agent group, so the right read is that it costs the least time per attempt rather than that it is the best at any single attempt.
Composite index
71.13
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
71.13
rank 8 of 17
Rank
#8
of 17 on the coding agents board
Median turn latency
31.4 s per prompt
4.7 min across the full nine prompt spec, derived
Reliability
71.1%
strict pass rate
SEO score
55.0
0 to 100, SEO and GEO axis
Three strongest axes
- Turn latency score100.0
- Value82.0
- Agent performance77.0
Three weakest axes
- SEO and GEO55.0
- Design output64.0
- Integrations64.0
Median turn latency
31.4 s per prompt
p10 19.8 s, p90 54.5 s
Strict pass rate
71.1%
32 pass, 5 partial, 8 fail
Executions recorded
45
5 runs of 9 prompts
Entry price
USD 10 / month
Vendor's own unit and billing period. Never a currency conversion
Per axis subscores
Composite recomputed from these 9 rows: 71.13. 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. Code ownership has no row here: it is not scored on this board.
| Axis | Subscore 0 to 100, tick is the roster median | Score | Median | Weight % | Contribution |
|---|---|---|---|---|---|
| Reliability | 71.1 | 75.6 | 18.56 | 13.20 | |
| Agent performance | 77.0 | 80.0 | 18.55 | 14.28 | |
| Scalability | 70.0 | 74.0 | 13.4 | 9.38 | |
| SEO and GEO | 55.0 | 56.0 | 12.37 | 6.80 | |
| API and MCP | 66.0 | 70.0 | 9.28 | 6.12 | |
| Integrations | 64.0 | 70.0 | 8.25 | 5.28 | |
| Design output | 64.0 | 62.0 | 7.22 | 4.62 | |
| Turn latency score | 100.0 | 39.9 | 7.22 | 7.22 | |
| Value | 82.0 | 80.0 | 5.15 | 4.22 |
Turn latency distribution
Every recorded prompt duration for Zed, in seconds. Median wall clock time for one prompt, not for a whole build. The cyan tick on the whisker is the median.
Spread against the cohort
p10 19.8 s / median 31.4 s / p90 54.5 s
Scale is shared with every product in the cohort, so the bars are directly comparable between pages. Ratio of p90 to median is 1.74x.
Outcome split
32 pass / 5 partial / 8 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
19.0 KB
19,456 bytes of real text content with scripts blocked
LCP
1,780 ms
Throttled connection, cold cache
CLS
0.040
Cumulative layout shift on load
SEO and GEO subscore
55.0
0 to 100, worth 12.37 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.
| Run | Prompt | Prompt target | Started | Duration (s) | Outcome | Note |
|---|---|---|---|---|---|---|
| R01 | P01 | Tenant and user model | 11 Aug 2026 08:00 UTC | 23.6 | pass | |
| R01 | P02 | Authentication and session | 11 Aug 2026 08:02 UTC | 47.4 | fail | Deployed URL returned 500 on every request. |
| R01 | P03 | Projects CRUD with tenancy | 11 Aug 2026 08:05 UTC | 58.0 | pass | |
| R01 | P04 | Public REST API with keys | 11 Aug 2026 08:08 UTC | 53.5 | fail | Build did not start after deploy. Recorded as a fail with the log preserved. |
| R01 | P05 | Outbound webhooks with signatures | 11 Aug 2026 08:11 UTC | 31.4 | partial | Required one clarifying instruction before the criterion was met. |
| R01 | P06 | Background jobs | 11 Aug 2026 08:13 UTC | 88.5 | pass | |
| R01 | P07 | Admin panel | 11 Aug 2026 08:17 UTC | 23.2 | partial | Delivered the main path, missed the boundary case named in the pass criteria. |
| R01 | P08 | Public marketing surface | 11 Aug 2026 08:19 UTC | 27.4 | pass | |
| R01 | P09 | Hardening pass | 11 Aug 2026 08:21 UTC | 35.0 | pass | |
| R02 | P01 | Tenant and user model | 12 Aug 2026 08:00 UTC | 21.3 | pass | |
| R02 | P02 | Authentication and session | 12 Aug 2026 08:02 UTC | 35.3 | pass | |
| R02 | P03 | Projects CRUD with tenancy | 12 Aug 2026 08:04 UTC | 36.1 | pass | |
| R02 | P04 | Public REST API with keys | 12 Aug 2026 08:07 UTC | 55.1 | pass | |
| R02 | P05 | Outbound webhooks with signatures | 12 Aug 2026 08:10 UTC | 30.9 | pass | |
| R02 | P06 | Background jobs | 12 Aug 2026 08:12 UTC | 26.5 | pass | |
| R02 | P07 | Admin panel | 12 Aug 2026 08:15 UTC | 26.8 | pass | |
| R02 | P08 | Public marketing surface | 12 Aug 2026 08:17 UTC | 47.4 | pass | |
| R02 | P09 | Hardening pass | 12 Aug 2026 08:20 UTC | 24.8 | pass | |
| R03 | P01 | Tenant and user model | 13 Aug 2026 08:00 UTC | 18.3 | pass | |
| R03 | P02 | Authentication and session | 13 Aug 2026 08:02 UTC | 24.6 | pass | |
| R03 | P03 | Projects CRUD with tenancy | 13 Aug 2026 08:04 UTC | 26.8 | pass | |
| R03 | P04 | Public REST API with keys | 13 Aug 2026 08:07 UTC | 52.5 | pass | |
| R03 | P05 | Outbound webhooks with signatures | 13 Aug 2026 08:10 UTC | 50.6 | fail | Task abandoned by the agent with no artifact produced. |
| R03 | P06 | Background jobs | 13 Aug 2026 08:12 UTC | 48.2 | pass | |
| R03 | P07 | Admin panel | 13 Aug 2026 08:15 UTC | 23.6 | pass | |
| R03 | P08 | Public marketing surface | 13 Aug 2026 08:18 UTC | 47.0 | fail | Build did not start after deploy. Recorded as a fail with the log preserved. |
| R03 | P09 | Hardening pass | 13 Aug 2026 08:20 UTC | 26.9 | pass | |
| R04 | P01 | Tenant and user model | 14 Aug 2026 08:00 UTC | 21.4 | partial | Delivered the main path, missed the boundary case named in the pass criteria. |
| R04 | P02 | Authentication and session | 14 Aug 2026 08:02 UTC | 18.3 | pass | |
| R04 | P03 | Projects CRUD with tenancy | 14 Aug 2026 08:04 UTC | 18.4 | partial | Pagination off by one at the final page boundary. |
| R04 | P04 | Public REST API with keys | 14 Aug 2026 08:06 UTC | 152.9 | pass | |
| R04 | P05 | Outbound webhooks with signatures | 14 Aug 2026 08:11 UTC | 40.6 | partial | Error envelope inconsistent between two of the endpoints. |
| R04 | P06 | Background jobs | 14 Aug 2026 08:14 UTC | 59.4 | pass | |
| R04 | P07 | Admin panel | 14 Aug 2026 08:17 UTC | 23.3 | pass | |
| R04 | P08 | Public marketing surface | 14 Aug 2026 08:19 UTC | 18.8 | pass | |
| R04 | P09 | Hardening pass | 14 Aug 2026 08:21 UTC | 37.8 | fail | Deployed URL returned 500 on every request. |
| R05 | P01 | Tenant and user model | 15 Aug 2026 08:00 UTC | 22.9 | pass | |
| R05 | P02 | Authentication and session | 15 Aug 2026 08:02 UTC | 18.0 | fail | Deployed URL returned 500 on every request. |
| R05 | P03 | Projects CRUD with tenancy | 15 Aug 2026 08:04 UTC | 25.4 | pass | |
| R05 | P04 | Public REST API with keys | 15 Aug 2026 08:07 UTC | 34.4 | pass | |
| R05 | P05 | Outbound webhooks with signatures | 15 Aug 2026 08:09 UTC | 21.5 | pass | |
| R05 | P06 | Background jobs | 15 Aug 2026 08:12 UTC | 38.9 | fail | Deployed URL returned 500 on every request. |
| R05 | P07 | Admin panel | 15 Aug 2026 08:14 UTC | 36.9 | pass | |
| R05 | P08 | Public marketing surface | 15 Aug 2026 08:17 UTC | 31.8 | fail | Generated migration conflicted with the existing schema and was not reconciled. |
| R05 | P09 | Hardening pass | 15 Aug 2026 08:19 UTC | 40.3 | pass |
Pricing
The editor is free and open source. Hosted agent usage starts at USD 10 per month, or bring your own model key at no licence cost.
- Entry price
- USD 10 / month
- Priced from
- vendor pricing page
- Value subscore
- 82.0
- Index points per euro
- 8.32
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
- Your repository, any framework
- deploy
- Not included
- database
- Whatever you already run
- auth
- It wires the library you choose
- background jobs
- Implemented in your stack
- webhooks
- Written, signing on request
- rest api
- Written to your conventions
- mcp server
- Yes
- export code
- Fully open source editor, code stays in your repository
- custom domain
- Your hosting decides
- ssr
- Your framework decides
Screenshot
Zed landing page, captured by the lab on 14 Aug 2026 at 1440 by 900. Stored locally, never hotlinked.

Zed, captured 14 Aug 2026.
Sources and fetch dates
Every claim on this page traces to one of these.
| Source | URL | Fetched |
|---|---|---|
| Zed pricing page | https://zed.dev/pricing | 14 Aug 2026 |
| Zed product site | https://zed.dev | 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 3.6 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.
Zed 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
79.17
Lab index
71.13
3 readers, 28 axis scores, last change 29 Aug 2026. Readers rate Zed 8.0 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.
| Axis | Weight | Lab | Readers | Votes | Reader mean |
|---|---|---|---|---|---|
| Agent performance | 18.55% | 77.0 | 86.7 | 3 | |
| Reliability | 18.56% | 71.1 | 81.3 | 3 | |
| Scalability | 13.4% | 70.0 | 78.0 | 2 | |
| SEO and GEO | 12.37% | 55.0 | 58.0 | 2 | |
| API and MCP | 9.28% | 66.0 | 77.7 | 3 | |
| Integrations | 8.25% | 64.0 | 69.7 | 3 | |
| Design output | 7.22% | 64.0 | 73.7 | 3 | |
| Turn latency score | 7.22% | 100.0 | 100.0 | 3 | |
| Value | 5.15% | 82.0 | 94.7 | 3 |
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
n/a
0 published open ratings, submitted without an account
Lab index
71.13
Measured, not voted
Gap to the measurement
n/a
Positive means open raters put it above the measurement
What agent performance looked like in practice
The fastest median in the index, and the reason is architectural rather than clever prompting: the editor is fast, the diff review is instant and almost no time is lost to interface latency. Correctness sits in the middle of the agent group, so the right read is that it costs the least time per attempt rather than that it is the best at any single attempt.
Across 45 recorded executions this product met the published pass criterion cleanly 32 times, partially 5 times and failed 8 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.