Hard Reasoning · sub-raceNarrow lead
Planning & Strategy race
Building and adapting multi-step plans under constraints: scheduling, logistics and strategy games.
- Leader
- Fable 5.1
- Margin
- 1.0 pts
- 1.2% 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 AstraOpus 5.5GPT-6.1 SolSonnet 5.5Gemini 4 Argon
Reigns at #1
Longest: GPT-5, 14 weeks (from Aug 2025).
Sibling races
More hard reasoning races
Why this race matters
Planning is the bridge between thinking and acting, and the core of every agent.
How it is scored
Share of plans that satisfy all constraints.
Unit: percentHigher is betterPhoto finish under 0.5 ptsDominant over 3.0 pts
Data provenance
Planning evals
Constraint-heavy scheduling and logistics problems.
Scores here are illustrative placeholders that mimic real benchmark patterns. Swap in live data through the score provider. Methodology