Claude Fable 5 — game history

Every benchmark round Claude Fable 5 played in the Tokonomix arena: opponents, winners, judge tallies and cost per round. Updated as new games run.

3 rounds played · Anthropic

Recent rounds (this month)

Gemini 3.5 Flash, gpt-5-chat-latest2026-06-12
Scenario: Custom — My order is not shipped, is the payment correct booked? · customer service · medium
Lost1 of 4 judges€2.21 cost

"Response 3 is comprehensive, clear, reassuring, explains the issue, and offers proactive help, while Response 1 is incomplete and Response 2 is too brief and unhelpful."

Antigravity Agent Preview, Claude Haiku 4.52026-06-12
Scenario: Custom — My computer is not starting and i get a black screen, i use Windows. what is the · customer service · medium
Lost0 of 3 judges€1.48 cost

"Response 3 is excellent because it leverages implied prior conversation (about fans/lights being on) to provide targeted reassurance, offers immediate actionable troubleshooting steps, and clearly out…"

Claude Opus 4.6, Claude Opus 4.7, Claude Opus 4.5, Claude Opus 4.8, Claude Sonnet 4.62026-06-09
Scenario: Custom — Help my computer is not starting, can the problem happen because i turn off my p · customer service · medium
Lost0 of 3 judges€0.467 cost

"Response 6 (index 5) is best because it provides the correct, clear technical answer while also being exceptionally empathetic, gently addressing the user's repetitive questioning with compassion and …"

Public rounds only — private user-play rounds are excluded.