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[ARTICLE · art-64693] src=thenewstack.io ↗ pub= topic=artificial-intelligence verified=true sentiment=· neutral

The bottleneck for AI agents isn’t the model anymore. It’s the context layer.

AI agent reliability problems now stem from the context layer, not the model, according to a pattern observed over two years by The New Stack.

read1 min views54 publishedJul 18, 2026

There’s a pattern I’ve watched repeat for two years. A team builds an agent, hits reliability problems, upgrades the model,

The post The bottleneck for AI agents isn’t the model anymore. It’s the context layer. appeared first on The New Stack.

source & further reading
thenewstack.io — original article Hermes, Claude Code, and Codex ran an identical model. Token use varied 70-fold AI agents are making retrieval engineering a core engineering discipline The 3 roles AI agents play in your developer platform
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