Archive

All past issues.

Issue #5

Your format constraints are silently breaking your prompts

Issue #5 of sumocat — sharp insights from this week's AI research for builders.

Issue #4

Adding format constraints to your prompts is silently breaking your model -- and your evals are missing it

Issue #4 of sumocat — sharp insights from this week's AI research for builders.

Issue #3

Adding a single formatting rule to your prompt can silently kill half your response quality

Issue #3 of sumocat — sharp insights from this week's AI research for builders.

Issue #2

Your Format Constraints Are Silently Wrecking Response Quality

Issue #2 of sumocat — sharp insights from this week's AI research for builders.

Issue #1

Nobody Is Testing AI Systems Properly

Voice agents fail under real speech, LLM judges can't be trusted, and your eval suite has blind spots you don't know about. 7 papers that prove QA for AI is broken.