In Pavel Huron's bug hunt test, Gemini 4 Carbon identified 57 out of 105 bugs, compared to Fable 5.2 identifying 58 bugs

Overview Debates Related claims Topics

Gemini 4 Carbon completed Pavel Huron's bug hunt benchmark for $31, compared to approximately $140 for Fable 5.2

In a simulated multi-agent travel itinerary booking workflow, software agents maintained a 66% operational uptime while achieving 0% task completion due to semantic misalignment

In a Cisco deployment test of a five-agent system, two cognitive failures caused overall system accuracy to drop from 98% to 81%

An analysis of public ChatDev multi-agent software development traces revealed semantic and cognitive misalignment failures in 100% of recorded sessions

AlphaGenome models operate with high precision and low recall, yielding few false positives but numerous false negatives

At its preview at the end of October 2026, Gemini 4 Carbon was the top-ranked model on the Artificial Analysis index

In a Cisco deployment test of a five-agent system, three cognitive failures dropped overall system accuracy to 16%

On the Artificial Analysis benchmark suite, Fable 5.2 cost $26.54 per task when operating on max effort settings

On Pavel Huron's Bug Hunt benchmark across two code repositories containing 105 planted bugs, Fable 5.2 detected 58 bugs, while Sonnet 5.5 Max detected 51 bugs

On the Artificial Analysis Intelligence Index, Fable 5.2 achieved a score of 65, placing 5 points ahead of Gemini Carbon, 6 points ahead of Opus 5.5, and 8 points ahead of GPT-6 Astra

On the RoboDojo Simon robotics benchmark, Fable 5.2 scored 64.9%, exceeding Opus 5.5's score by 25 points

On the Remote Labor Index contractor benchmark, Fable 5.2 achieved a score of 41.3%, compared to Opus 5.5's score of 21%

On protein design benchmarks, Mythos 5.2 scored 85.1%, outperforming Mythos 5.1 by 6 percentage points

On the Artificial Analysis benchmark suite, Fable 5.2 cost $9.08 per task on high effort settings

Ablating 80% to 90% of neurons in the Qwen 3.6-35B A3B language model improved performance on ARC-AGI benchmark puzzles

On the TerminalBench Science 0.1 benchmark for agentic scientific research, Fable 5.2 scored 6 points ahead of GPT-6 Astra

On the Artificial Analysis benchmark suite, Fable 5.2 cost $14.83 per task on extra high effort settings

On the Artificial Analysis Intelligence Index, Fable 5.2 scored 62 on both the Extra High and High effort settings

On the AA Briefcase benchmark, Fable 5.2 recorded a lower Elo score than Opus 5.5

On the AA Briefcase agentic knowledge work benchmark, Fable 5.2 scored approximately 5 points higher than Fable 5.1, Opus 5.5, and Gemini 4 Carbon