Hard Reasoning · sub-raceNarrow lead
Abstract & Novel Reasoning race
Interactive puzzles that require learning new rules on the fly, easy for people and hard for models.
- Leader
- Fable 5.1
- Margin
- 0.9 pts
- 2.1% ahead
- Weeks at #1
- 9
- in a row
- Changes
- 5
- in 2026
Warming up the track…
Oct 19, 2026Fable 5.1 leads
2025Apr ’25Jul ’25Oct ’252026Apr ’26Jul ’26Oct ’26
Score history
Top 6 today over the leader's frontier · click to jump to a week
#1 frontierFable 5.1GPT-6 AstraGPT-6.1 SolOpus 5.5Gemini 4 ArgonGrok 4.7
Reigns at #1
Longest: GPT-5, 15 weeks (from Aug 2025).
Sibling races
More hard reasoning races
Why this race matters
Measures fluid intelligence rather than knowledge, the gap most often cited in AGI debates.
How it is scored
Share of environments solved within the action budget.
Unit: percentHigher is betterPhoto finish under 0.4 ptsDominant over 2.5 pts
Data provenance
Interactive game-like environments with novel rules.
Scores here are illustrative placeholders that mimic real benchmark patterns. Swap in live data through the score provider. Methodology