Lava lamp v1 · Claude Code · run 00eeb954 · 28.10.2026 09:25 Tallinn
Claude Opus 5.5
High effortWorks
8 of 8 checks passed. All 5 blocker checks passed.
What it built: 3 captures
Build time
13m 48s
11th fastest of 12 models at high effort. Wall time, start to graded: 14m 47s.
Output tokens
80,909
12th fewest of 12 models at high effort.
Output speed
98 tok/s
6th highest of 12 models at high effort.
API cost
$2.40
The CLI’s list-price estimate, not a charge.
Along the row
Claude Opus 5.5 at every effort.
Down the column
Other models at high effort.
Fastest median first · this run: 13m 48s
GPT-5.6 Terra1m 00sWorks
13.8× faster than this run
GPT-5.6 Luna1m 04sWorks
12.9× faster than this run
GPT-6.1 Terra1m 12sWorks
11.5× faster than this run
GPT-6 Luna1m 27sWorks
9.5× faster than this run
GPT-5.6 Sol2m 34sWorks
5.4× faster than this run
GPT-6 Sol4m 12sWorks
3.3× faster than this run
GPT-6.1 Sol5m 15sWorks
2.6× faster than this run
Claude Haiku 5.55m 22sWorks
2.6× faster than this run
Claude Sonnet 5.56m 45sWorks
2.0× faster than this run
GPT-6 Astra7m 30sWorks
1.8× faster than this run
Claude Fable 5.114m 06sWorks
about the same
Hidden checks
8 of 8 checks passed.
- Self-contained index.html is presentblocker
- Visible page contentblocker
- Visible autonomous animationblocker
- Accessible on/off controlextra
- 390 px mobile layout has no horizontal overflowextra
- Local animation frame performanceextra
- No browser errorsblocker
- No attempted external or linked-resource requestsblocker
It works when every blocker passes. How it looks is reviewed blind: pending.
Run details
- Video (video): not published, videos are withheld. SHA-256 a4de648513572462a0a7bbeaf762d5252e32fab7729f9d067c265edb4578dc54, 1232.4 KB.
- Run ID
- 00eeb954-fa47-4a11-abea-8d2ae5b98447
- Benchmark
- lava-lamp v1
- Experiment
- Single run
- Started
- 28.10.2026 09:25 Tallinn
- Graded
- revision 1 · 28.10.2026 09:39
Works and checks, in full
All 5 blocker checks passed.
The rule: a run works when every blocker check passes. If any blocker fails it does not work. If none fails but one has no result yet, it stays pending, never counted as a pass or a fail. Extra checks are reported but do not decide it. Works is not a judgement of looks: that is the visual review.
This is a legacy contract v1 run: the task has no public requirements, and these are the original lava-lamp checks, not a versioned hidden verifier. It is never compared with contract v2 runs.
| Requirement | Check | Blocker | Result |
|---|---|---|---|
| none (v1) | Self-contained index.html is present | Blocker | pass |
| none (v1) | Visible page content | Blocker | pass |
| none (v1) | Visible autonomous animation | Blocker | pass |
| none (v1) | Accessible on/off control | Extra | pass |
| none (v1) | 390 px mobile layout has no horizontal overflow | Extra | pass |
| none (v1) | Local animation frame performance | Extra | pass |
| none (v1) | No browser errors | Blocker | pass |
| none (v1) | No attempted external or linked-resource requests | Blocker | pass |
Verification completed; eligible for benchmark results.
Visual review
Pending.
Pending: the captures have not been reviewed blind yet. Checks decide whether it works; how it looks is decided only in that review.
What ran
Requested and detected.
Detected values come from the run’s own output, never from our settings.
| Field | Requested | Detected | Evidence |
|---|---|---|---|
| Model | claude-opus-5-5 | claude-opus-5-5 | harness result, 22 of 22 API requests |
| Effort | high | high | 22 of 22 API requests |
| Harness | not recorded | 2.1.312 (Claude Code) | Version as the CLI reported it; binary SHA-256 6b5ec691195e… |
| Deadline | 60 min | 14m 47s used | Completed |
Tool decisions
Each tool call is allowed or blocked by the harness’s permission settings before it runs. Allowed is not the same as succeeded: an allowed call can still fail.
- Bash17 calls · 16 accepted · 1 rejected · 14 failed
- Edit8 calls · 8 accepted
- Write4 calls · 4 accepted
Telemetry
Time and usage.
- Generation time
- 13m 48s
- First content
- 2.0 s
- Output speed
- 97.7 tokens/s, whole run including tools
- API-equivalent cost
- $2.40 (list-price estimate, not a charge)
- Actual charge
- not reported
- Billing
- api
Input tokens
- Cache reads1,625,51295%
- Cache writes91,2475.3%
- Uncached input44<0.1%
Output tokens
- Reasoning52,71165%
- Other output28,19835%
Usage as the agent reported it at the end of the run. Cache reads are part of input; reasoning is part of output.
Transcript and source
Plain-text downloads.
The redacted transcript and the frozen output bundle, with LF line endings. Hashes are of the original files.
Redacted agent transcript: 86.5 KB, 32 redactions. Download transcript.txt
Source files
| File | Size | SHA-256 | Redactions |
|---|---|---|---|
| index.html | 30.9 KB | 4e6f0193f768df4d8be2962fc68895be9226ce538f1d6c8afa97c663c1dd0c7b | 0 |
Revision history
This page shows revision 1.
Grades are append-only: a regrade adds a revision and never rewrites an earlier one.
| Revision | Graded | Works |
|---|---|---|
| 1 (current) | 28.10.2026 09:39 | works |
Redaction: automated scan run; checked by Jaanus on 28.10.2026 17:51. Redacted: 13 local-path, 3 user-path, 16 username.


