Atlas

Models

← All models

Sonoma Sky Alpha

OpenRouter · 2025-09-05

Sonoma Sky Alpha was a cloaked OpenRouter preview alias later identified as an early test version of Grok 4 Fast. Atlas keeps the alias as a benchmark entry because its pre-release behavior is not interchangeable with the released model.

Benchmark scores

BenchmarkScore
Fiction.LiveBench - 0 tokens (relevant passages only)100.0
Fiction.LiveBench - 120K tokens84.4
Fiction.LiveBench - 16K tokens94.4
Fiction.LiveBench - 192K tokens84.4
Fiction.LiveBench - 1K tokens97.2
Fiction.LiveBench - 2K tokens97.2
Fiction.LiveBench - 32K tokens86.1
Fiction.LiveBench - 400 tokens97.2
Fiction.LiveBench - 4K tokens94.4
Fiction.LiveBench - 60K tokens83.3
Fiction.LiveBench - 8K tokens100.0
Ruby LLM Benchmarks — Program Fixer64.4
Ruby LLM Program Fixer — Calendar71.6
Ruby LLM Program Fixer — Parking Garage39.3
Ruby LLM Program Fixer — School Library71.3
Ruby LLM Program Fixer — Vending Machine75.4
Loading Atlas data…