Claude Fable 5.1 in Claude Code 2.1.280
skills off
Our harness configuration killed the run before any output. Not a model failure.
Wall time 4m 25sCost $0.020 reported
Review
Not the model's fault: our harness configuration ended the run. Claude Code's 180 s stream-idle watchdog cut Fable's silent max-effort thinking and the non-streaming fallback then hit a gateway timeout (HTTP 524).
The full review
Not the model's fault: our harness configuration ended the run. Claude Code's 180 s stream-idle watchdog cut Fable's silent max-effort thinking and the non-streaming fallback then hit a gateway timeout (HTTP 524). Nothing was produced, so there is nothing to judge.
Verdict by reviewer.
Harness-config failure (ours). Our harness config: Claude Code's default 180 s stream-idle watchdog cut Fable's silent max-effort thinking, then the non-streaming fallback died on a gateway timeout (HTTP 524). Not a model failure.
Attempt 1 of 4
Every try of this model in this harness on this prompt, oldest first. A later attempt is the cell's result: attempt 4.
Scores
Not scored: only runs that finished on their own are scored.
Downloads
Files actually published for this run. Original output, site-made previews and post-run conversions are labelled separately.
No files were captured for this run.
The exact prompt
agentic harness (save the file; self-render allowed), 2,074 characters. Every result for this prompt
Create a single self-contained SVG illustration of the Sony PS5 Pro DualSense wireless controller at MAXIMUM fidelity. This is a showcase piece: take your time to plan the geometry carefully before writing it. Requirements: 1) Accurate DualSense silhouette and proportions: a wide body with the large, wide touchpad spanning the top centre, two flared, rounded grips sweeping down and outward, and a perfectly symmetrical left/right layout. White outer shell with the black central core section. 2) Face buttons on the right in the classic diamond: triangle (top), circle (right), cross (bottom), square (left), each drawn as clean PlayStation symbols in their real colours (green triangle, red circle, blue cross, pink square) in the modern outline style on light buttons, with subtle bevels. 3) D-pad on the left as FOUR separate arrow-shaped directional buttons (up, down, left, right), not a single cross. 4) Two black analog sticks with concave tops and a textured grip ring (fine radial or dotted texture) and shading. 5) The PlayStation logo button centred below the touchpad between the sticks, the small mic mute button with its orange-tinted indicator line just below it, the Create button (left) and Options button (right) flanking the touchpad. 6) The blue light-bar glow running along both side edges of the touchpad, with a soft bloom. Speaker grille holes on the black core. 7) Realistic product-render shading: gradients, specular highlights, soft ambient occlusion, a contact shadow beneath the controller. 8) A clean dark studio background with a subtle radial vignette. Front-on hero shot, centred and filling the frame well. Use viewBox="0 0 1600 1100" with width="1600" height="1100". No external assets, no raster images, no fonts, no scripts. Output ONLY the complete SVG code, starting with <svg and ending with </svg>, with no explanation or markdown fences. Save it as controller.svg in the current directory. You may render and inspect your own output (headless chromium is available at /usr/bin/chromium) and iterate on your own before finishing.
How it was made
No transcript was delivered with this result.
Cost breakdown
Headline cost $0.020, as reported by Claude Code (its own bill for the run). The list-price estimate from the token counts is $0.020.
| Tokens by type | Tokens | $ per 1M | Cost |
|---|---|---|---|
| Input (uncached) | 1,900 | $10.00 | $0.0190 |
| Cache write | 0 | $12.50 | $0 |
| Cache read | 0 | $0.25 | $0 |
| Output | 22 | $50.00 | $0.0011 |
| of which reasoning | not recorded | billed as output |
- Total computed from tokens
- $0.0201
- Total reported by the harness
- $0.0197
- Difference
- computed $0.02 vs harness $0.02 (diff +0.00)
computed from harness-reported token counts x list prices; harness also reported a total. Only the session-title side call is visible in CC /cost. Any thinking tokens Fable generated before the stream was cut are not visible to us.
Prices: project price table 2026-09-22 (Anthropic list); cache write 1.25x input per Anthropic docs, 2026-09-23.
Run notes
- Mode: interactive TUI in tmux, bwrap sandbox
- Context setting: claude-fable-5-1[1m] (1M window)
- Isolation: bwrap sandbox
- Isolation audit: none (no tool calls)