Verdict
Claude Fable 5 leads 11–2 across 13 shared benchmarks.
Claude Fable 5 11 · Gemini 3 Pro 2 · higher isn't always better — check the caveats below.
Reported scores — protocols may differ. How we compare
Reasoning: Evenly split 2–2 across 4 shared reasoning benchmarks (largest gap: ARC-AGI, 98.5 vs 75 — single evaluator).
Agentic: Claude Fable 5 leads 2–0 across 2 shared agentic benchmarks (largest gap: Remote Labor Index, 16.1 vs 1.25 — protocols undisclosed).
Vendor claims — compare against the measured scores above. A claim is what a developer says about its own model, not an independent measurement.
Agentic / Tool Use
“The longer and more complex the task, the larger Fable 5's lead over our other models”
Coding
“It is state-of-the-art on nearly all tested benchmarks of AI capability, showing exceptional performance in software engineering, knowledge work, vision, scientific research, and many other areas”
General
“Fable 5's capabilities exceed those of any model we've ever made generally available”
Multimodal
“It can extract precise numbers from detailed scientific figures and can perform complex vision-based tasks like rebuilding a web app's source code from screenshots alone”
Context Handling
“state-of-the-art reasoning, vision and spatial understanding, leading multilingual performance, and 1 million-token context window”
Multimodal
“It's the best model in the world for multimodal understanding and our most powerful agentic and vibe coding model yet”
Reasoning
“It's state-of-the-art in reasoning, built to grasp depth and nuance”
Claude Fable 5 leads 11–2 across 13 shared benchmarks. Claude Fable 5 leads 11 benchmarks and Gemini 3 Pro leads 2. Higher isn't always better — see the integrity caveats on each benchmark.
Claude Fable 5 and Gemini 3 Pro have 13 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.
Claude Fable 5 leads agentic 2–0.