Lava lamp v1 · Claude Code · run a46b8eab · 28.10.2026 08:01 Tallinn

Claude Sonnet 5.5

Extra high effort

Works

8 of 8 checks passed. All 5 blocker checks passed.

What it built: 3 captures

Desktop capture of Claude Code (Sonnet 5.5)'s output on Lava lamp v1, xhigh effort, 28.10.2026 08:01 (run a46b8eab)
Desktop · 490.9 KB · 455f7f826d71…
Phone capture of Claude Code (Sonnet 5.5)'s output on Lava lamp v1, xhigh effort, 28.10.2026 08:01 (run a46b8eab)
Phone · 243.8 KB · 71ad4e9bb9a1…
Motion capture of Claude Code (Sonnet 5.5)'s output on Lava lamp v1, xhigh effort, 28.10.2026 08:01 (run a46b8eab)
Motion · 489.8 KB · 9e9d48bce5a8…

Along the row

Claude Sonnet 5.5 at every effort.

  1. Claude Sonnet 5.5 at low effort: desktop capture of run b7f9c96b Low2m 37s

    Works

    1 run
  2. Claude Sonnet 5.5 at medium effort: desktop capture of run 2152d2b4 Medium4m 44s

    Works

    1 run
  3. Claude Sonnet 5.5 at high effort: desktop capture of run 4c8fd1ea High6m 45s

    Works

    1 run
  4. Claude Sonnet 5.5 at extra high effort: desktop capture of run a46b8eab Extra high21m 18s

    Works

    This effort
  5. Claude Sonnet 5.5 at max effort: desktop capture of run 42c0200c Max87m 03s

    Works

    1 run

Down the column

Other models at extra high effort.

Fastest median first · this run: 21m 18s

  1. GPT-6.1 Terra at extra high effort: desktop capture of run 3ae8f53fGPT-6.1 Terra1m 15s

    Works

    17.1× faster than this run
  2. GPT-5.6 Luna at extra high effort: desktop capture of run c312c80fGPT-5.6 Luna1m 25s

    Works

    15.1× faster than this run
  3. GPT-5.6 Terra at extra high effort: desktop capture of run 7eac2b69GPT-5.6 Terra3m 50s

    Works

    5.5× faster than this run
  4. GPT-5.6 Sol at extra high effort: desktop capture of run 0e1f62c1GPT-5.6 Sol4m 05s

    Fails

    5.2× faster than this run
  5. GPT-6 Luna at extra high effort: desktop capture of run 61c1a78eGPT-6 Luna4m 24s

    Works

    4.8× faster than this run
  6. GPT-6 Sol at extra high effort: desktop capture of run 10bc68ffGPT-6 Sol7m 11s

    Works

    3.0× faster than this run
  7. Claude Haiku 5.5 at extra high effort: desktop capture of run 90ef705aClaude Haiku 5.58m 28s

    Works

    2.5× faster than this run
  8. GPT-6.1 Sol at extra high effort: desktop capture of run 0b6358d6GPT-6.1 Sol11m 37s

    Works

    1.8× faster than this run
  9. GPT-6 Astra at extra high effort: desktop capture of run 47bb0692GPT-6 Astra25m 55s

    Works

    1.2× slower than this run
  10. Claude Opus 5.5 at extra high effort: desktop capture of run 499f4389Claude Opus 5.528m 09s

    Works

    1.3× slower than this run
  11. Claude Fable 5.1 at extra high effort: desktop capture of run bcfef55bClaude Fable 5.132m 58s

    Works

    1.5× slower than this run

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 detailsagent config, what ran, tokens, source and revisions
  • Video (video): not published, videos are withheld. SHA-256 117d64b17c25b45ca4bfa51f721749049bdd8e2d0fdb2b003648682ec99ccd06, 1242.3 KB.
Run ID
a46b8eab-1611-4bea-abe0-8396afbf006e
Benchmark
lava-lamp v1
Experiment
Single run
Started
28.10.2026 08:01 Tallinn
Graded
revision 1 · 28.10.2026 08:24

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.

Contract v1 checks for this run, with blocker and result
RequirementCheckBlockerResult
none (v1)Self-contained index.html is presentBlockerpass
none (v1)Visible page contentBlockerpass
none (v1)Visible autonomous animationBlockerpass
none (v1)Accessible on/off controlExtrapass
none (v1)390 px mobile layout has no horizontal overflowExtrapass
none (v1)Local animation frame performanceExtrapass
none (v1)No browser errorsBlockerpass
none (v1)No attempted external or linked-resource requestsBlockerpass

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.

Requested agent config beside what the run reported
FieldRequestedDetectedEvidence
Modelclaude-sonnet-5-5claude-sonnet-5-5harness result, 44 of 44 API requests
Effortxhighxhigh44 of 44 API requests
Harnessnot recorded2.1.312 (Claude Code)Version as the CLI reported it; binary SHA-256 6b5ec691195e…
Deadline60 min22m 17s usedCompleted

Tool decisions

101 calls · 99 accepted · 2 rejected

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.

  • Edit50 calls · 50 accepted
  • Bash32 calls · 30 accepted · 2 rejected · 13 failed
  • Read9 calls · 9 accepted
  • Write8 calls · 8 accepted
  • Grep2 calls · 2 accepted

Telemetry

Time and usage.

Generation time
21m 18s
First content
1.4 s
Output speed
131.8 tokens/s, whole run including tools
API-equivalent cost
$2.92 (list-price estimate, not a charge)
Actual charge
not reported
Billing
api

Input tokens

6,973,761 tokens
  • Cache reads6,748,86697%
  • Cache writes224,8073.2%
  • Uncached input88<0.1%

Output tokens

168,426 tokens
  • Reasoning117,39270%
  • Other output51,03430%

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: 200.9 KB, 76 redactions. Download transcript.txt

Source files

1 file · 30.9 KB
Files in the output bundle
FileSizeSHA-256Redactions
index.html30.9 KB210e6f5794b578076bb045bd9a1fdb10d62a846a4b8d473beb5c360431b3485b0
Bundle SHA-256 210e6f5794b578076bb045bd9a1fdb10d62a846a4b8d473beb5c360431b3485b

Revision history

This page shows revision 1.

Grades are append-only: a regrade adds a revision and never rewrites an earlier one.

Grading revisions of this run
RevisionGradedWorks
1 (current)28.10.2026 08:24works

Redaction: automated scan run; checked by Jaanus on 28.10.2026 17:51. Redacted: 31 local-path, 13 user-path, 32 username.