Epoch AI - Spireclimb Sts2 A10: leaderboard

The Slay the Spire 2 track of Epoch AI's SpireClimb: win percentage across 75 seeded runs, with five characters at Ascension 10. The game is fixed at version 0.107.1 and models use a computer-use harness at maximum reasoning effort. Higher is better. Source: epoch.ai/benchmarks/spireclimb.

Metric: Score. Source: epoch.ai. Saturation forecast: Around 2028. 7 models tracked.

Top models

#ModelScoreOverall rank
1GPT-6 Astra (Max)34.67#5 (GPT-6 Astra)
2GPT-6.1 Sol (Max)29.33#8 (GPT-6.1 Sol)
3GPT-6 Sol (Max)13.33#14 (GPT-6 Sol)
4Claude Opus 5.5 (Max)6.67#3 (Claude Opus 5.5)
5Claude Fable 5.1 (Max)4#9 (Claude Fable 5.1)
6Claude Sonnet 5.5 (Max)2.67#10 (Claude Sonnet 5.5)
7GPT-6 Luna (Max)0#52 (GPT-6 Luna)

No result here: #7 Gemini 4 Argon.

Interactive version: theaggregate.ai/benchmark?slug=epoch-ai-spireclimb-sts2-a10 · How It Works · Data refreshed daily, snapshot 2026-10-16.