A business tycoon game "85% done … All built with Opus 5.5 + Sonnet 5.5"
CodeRead the post
x.com · link re-checked 2026-10-16
Claude Fable 5
By Anthropic. 9 results on 9 boards, copied as published. Different boards, different metrics: don't add them up.
License (as listed)Proprietary
Hosting regionNot confirmed
Boards9
Code
- 95%Vals AI — SWE-bench Verified
Claude Fable 5 · % resolved · board #7
Mini-SWE-agent · as of 2026-09-01 Stale ↗
- 89.78%Vals AI — LiveCodeBench
Claude Fable 5 · Accuracy % · board #2
Vals AI implementation (no agent) · as of 2026-09-01 Stale ↗
- 64.5%SWE-rebench
Fable 5 [high] · Resolved rate % · board #1
SWE-rebench harness (agent rows are full products) · as of 2026-07-01 Stale ↗
Agentic / terminal
- 44.55%Terminal-Bench 4.0
Fable 5 (max) · Resolution rate
Claude Code · as of 2026-06-09 Stale ↗
Websites
- 1624LMArena WebDev Arena
Claude Fable 5 (High) · Arena score · board #24
LMArena WebDev (agentic front-end tasks) · as of 2026-10-22 ↗
- 90.35%Vals AI Vibe Code Bench v1.1
Claude Fable 5 · Score % · board #4
OpenHands · as of 2026-10-20 ↗
- 1280Design Arena (Fullstack)
claude-fable-5 · Elo · board #8
Design Arena · as of 2026-10-24 ↗
Design
- 1309Design Arena (All categories)
claude-fable-5 · Elo · board #18
Design Arena · as of 2026-10-24 ↗
Android
- 90.9%Android Bench 1.0 tasks (100 tasks)
Claude Fable 5 · Score %
not_stated · as of 2026-08-11 ↗
iOS
No mature public leaderboard
Available in
No plan row in our pricing data names this model version.
Use cases with this model
No sourced use case names this exact model version.
Same family: Claude 44
A Picasso-style three.js Tetris; Opus 5.5 also played and recorded the game itself
DesignRead the post
x.com · link re-checked 2026-10-16
A game "in about two weeks". GPT-6.1 Sol made the assets, Opus 5.5 did "most of the coding and game logic"
CodeRead the post
x.com · link re-checked 2026-10-16
Cost (user-reported): "look what it built through the API in 3 minutes for $0.19. Claude Opus 5.5 took 15 minutes and $2.61 on the same prompt."
DesignRead the post
x.com · link re-checked 2026-10-16
Rebuilt Shopify's four AI "gates" in headless Claude Code on tinydb and measured which gates catch bugs
CodeRead the post
dev.to · web source · link re-checked 2026-10-16
Test: "Same prompt and same references, Opus 5.5 vs Gemini 4 Argon. Opus did it in one shot. Argon got 3 rounds of feedback and still can't match…
DesignRead the post
x.com · link re-checked 2026-10-16
Sources
lmarena.ai/leaderboard/webdev vals.ai/benchmarks/vibe-code vals.ai/benchmarks/swebench vals.ai/benchmarks/lcb swe-rebench.com developer.android.com/bench tbench.ai/leaderboard designarena.ai/leaderboard designarena.ai/leaderboard/fullstack