Lava lamp v1 · Claude Code · run 6d90c6ce · 28.10.2026 11:14 Tallinn

Claude Fable 5.1

Medium effort

Works

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

Compare →Transcript Source

Desktop capture of Claude Code (Fable 5.1)'s output on Lava lamp v1, medium effort, 28.10.2026 11:14 (run 6d90c6ce) — **Desktop** · 619.8 KB · e859bd721a03…

Phone capture of Claude Code (Fable 5.1)'s output on Lava lamp v1, medium effort, 28.10.2026 11:14 (run 6d90c6ce) — **Phone** · 233.8 KB · c94815cff83f…

Motion capture of Claude Code (Fable 5.1)'s output on Lava lamp v1, medium effort, 28.10.2026 11:14 (run 6d90c6ce) — **Motion** · 619.4 KB · 278d29c68c8e…

Build time
4m 53s
9th fastest of 11 models at medium effort. Wall time, start to graded: 5m 51s.
Output tokens
23,496
8th fewest of 11 models at medium effort.
Output speed
80 tok/s
7th highest of 11 models at medium effort.
API cost
$1.77
The CLI’s list-price estimate, not a charge.

Along the row

Claude Fable 5.1 at every effort.

Down the column

Other models at medium effort.

Fastest median first · this run: 4m 53s

Hidden checks

7 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 163075056e71a4bcaab38ae3dc0b48d2254ddc5fad8b6ff4996983405a810c8b, 1186.0 KB.

Run ID: 6d90c6ce-4b80-4abc-9d54-cb1304195926
Benchmark: lava-lamp v1
Experiment: Single run
Started: 28.10.2026 11:14 Tallinn
Graded: revision 1 · 28.10.2026 11:20

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
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	fail
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.

Requested agent config beside what the run reported
Field	Requested	Detected	Evidence
Model	claude-fable-5-1	claude-fable-5-1	harness result, 24 of 24 API requests
Effort	medium	medium	24 of 24 API requests
Harness	not recorded	2.1.312 (Claude Code)	Version as the CLI reported it; binary SHA-256 6b5ec691195e…
Deadline	60 min	5m 51s used	Completed

Tool decisions

23 calls · 23 accepted · 0 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.

Bash11 calls · 11 accepted · 11 failed
Edit10 calls · 10 accepted
Write2 calls · 2 accepted

Telemetry

Time and usage.

Generation time: 4m 53s
First content: 1.3 s
Output speed: 80.3 tokens/s, whole run including tools
API-equivalent cost: $1.77 (list-price estimate, not a charge)
Actual charge: not reported
Billing: api

Input tokens

739,398 tokens

Cache reads705,88895%
Cache writes32,7724.4%
Uncached input738<0.1%

Output tokens

23,496 tokens

Reasoning5,52324%
Other output17,97376%

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: 50.5 KB, 20 redactions. Download transcript.txt

Source files

1 file · 16.0 KB

Files in the output bundle
File	Size	SHA-256	Redactions
index.html	16.0 KB	cb0aa8520c7c881e6eb19d38c671a52db496e7388edc724da865e8ffa0f90c54	0

Bundle SHA-256 cb0aa8520c7c881e6eb19d38c671a52db496e7388edc724da865e8ffa0f90c54

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
Revision	Graded	Works
1 (current)	28.10.2026 11:20	works

Redaction: automated scan run; checked by Jaanus on 28.10.2026 17:51. Redacted: 9 local-path, 3 user-path, 8 username.

Download run.json