# GPT-5 and the shift toward the agentic web

DevFeed: [GPT-5 and the shift toward the agentic web](<https://devfeed.tech/articles/gpt-5-failed-the-wrong-test-33472.md>)

Original publisher: [Read original article](<https://timkellogg.me/blog/2025/08/08/agents>)

Published: 2025-08-08T00:00:00Z

Content type: opinion

Language: en

Sources: [Tim Kellogg](<https://devfeed.tech/sources/tim-kellogg.md>)

Topics: [Large Language Model](<https://devfeed.tech/topics/llm.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [Claude Code](<https://devfeed.tech/topics/claude-code.md>), [agent observability](<https://devfeed.tech/topics/agent-observability.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [ai-agents](<https://devfeed.tech/tags/ai-agents.md>), [claude-code](<https://devfeed.tech/tags/claude-code.md>), [gpt](<https://devfeed.tech/tags/gpt.md>), [gpt-oss](<https://devfeed.tech/tags/gpt-oss.md>), [llm](<https://devfeed.tech/tags/llm.md>)

## AI overview

This commentary argues that GPT-5 should be evaluated less by whether it feels dramatically better as a language model and more by how effectively it supports an agentic web. It highlights software harnesses, tool use, reinforcement learning, and features such as Claude Code's subagents as important parts of that shift.

## Source excerpt

the best way to emphasize the importance of this week's developments is to go all the way back to January and see how we got here.