The Pragmatic Engineer

The Pragmatic Engineer

The Pulse

The Pulse: Did Anthropic’s new model just boost rival Codex’s market share?

Anthropic’s new model, Fable, has restrictions many users find unacceptable. Also: a new trend of smart model routing, Coinbase’s core service has no automatic cross-zone failover, and more.

Gergely Orosz's avatar
Gergely Orosz
Jun 11, 2026
∙ Paid

The Pulse is a series covering events, insights, and trends within Big Tech and startups. Notice an interesting event or trend? Hit reply and share it with me.

Today, we cover:

  1. Anthropic alienates customers with Fable’s data retention and nerf policies. Anthropic’s latest mode, Fable, stores customer prompts and data for 30+ days and performs worse if Anthropic thinks devs’ usage could potentially pose a commercial threat. The launch is an urgent reminder to have an off-ramp from Claude if you want to be able to vote with your feet.

  2. New trend: smart model routing. Are there any ‘intelligent’ router solutions out there which select the right model for the right task? I looked into it, and there are a few options. More suggestions welcome!

  3. Reliability fail: No automated zone failover for Coinbase’s global trading service. Back in 2016, Uber had a cross-region failover for its core business. Ten years later, Coinbase does not, so it’s little wonder the platform suffered an embarrassing 10-hour outage. The big mess is a head scratcher.

  4. Industry pulse. Anthropic and OpenAI file for IPOs, open source project quits GitHub after maintainer banned without appeal, Opendoor “reshores” jobs from India to the US with AI-native engineers, and more.

  5. Are LLMs eroding software engineering skills? A software engineer admits they feel increasingly useless due to how capable LLMs are, in an article that has resonated with lots of folks. My sense is that we give too much credit to LLMs, while underestimating our own capabilities and understanding.

1. Anthropic’s new model release is a reminder to have an off-ramp plan from Claude

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