Anthropic extends free Fable 5 usage until July 19 and adds a browser to Claude Code

According to the company, subscribers on the Pro, Max, and Team tiers, as well as holders of a Premium Seat in seat-based Enterprise contracts, can benefit. They may use Fable 5 up to half of their weekly usage allowance at no additional cost. Excluded are the Free tier, Standard Seats in Enterprise contracts, usage-based Enterprise plans, and API access; in those, the model is billed at regular rates. No activation is required — access is granted automatically.

In parallel with the subscription extension, Anthropic is also extending the 50 percent increased weekly limits in Claude Code, in effect since July 1, until the same cutoff date. The Claude Code development team presented the browser feature on X. The browser sits as its own tabbed area next to the open code window and opens documentation, design drafts, or any other websites. It runs isolated in its own profile within a sandbox, separated from the user's personal browser and without its stored logins or history.

Integrated browser in Claude Code

With the integrated browser, the AI agent can read web pages, click through them, and fill out forms. Anthropic describes the approach as follows: "Claude operates external sites using the same tools as local testing environments, but with two additional locks." Security classifiers, the company says, check every write action such as clicking or typing and then require approval, regardless of the configured permission mode. If auto mode is not enabled, a target domain must also be on an allowlist before Claude navigates to it, as Anthropic describes in the desktop client documentation.

Users can also decide themselves whether a session, including cookies, persists across a restart. "Purchases, the creation of new accounts, or the solving of CAPTCHAs are refused by the agent without explicit input from the user, according to Anthropic." If Claude is instead supposed to act on behalf of the user in services where they are already logged in, Anthropic continues to point to the separate Claude in Chrome extension.

The backdrop to the repeated extensions is an unusual market launch. Anthropic released Fable 5 on June 9; a two-week promotional phase was originally planned. Three days later, the company blocked access for all users worldwide following an export control directive from the US government. The government only lifted the order at the end of June. After 19 days of being blocked and an agreement with the Trump administration, Fable 5 returned to subscriptions on July 1 with stricter safety classifiers and a shortened promotional window.

Background: export halt and return

Afterward, (presumably) it can only be used via usage credits. According to the company, list prices are $10 per million input tokens and $50 per million output tokens — exactly double the price of Opus 4.8 and thus the highest publicly listed price of a generally available Anthropic model. Anthropic has promised to eventually include Fable 5 permanently in its subscription tiers as soon as sufficient compute capacity is available.

Independently of the browser, Anthropic is extending the free use of its most powerful consumer-facing model. "Since July 1, Fable 5 is back in subscriptions." Together with its sibling model Mythos 5, the model forms Anthropic's new Frontier class; Mythos 5, however, remains reserved exclusively for vetted organizations. During the previous extension to July 12, Anthropic brought the agent Claude Cowork to the web and to smartphones.

Fable 5, however, consumes the weekly allowance noticeably faster than smaller models; long chats and large contexts shorten the available time. Anthropic promotes architectures in which Fable 5 acts as an orchestrator or advisor while cheaper models such as Sonnet handle token-intensive tasks. On July 9, the day GPT-5.6 launched, Anthropic had reset the weekly limits for all users.

Competition with OpenAI and GPT-5.6

Competitive pressure in the AI agent market is high. OpenAI has made GPT-5.6 generally available, which in independent benchmarks from Artificial Analysis trails Fable 5 by only one point, but according to analysts costs roughly a third per task. OpenAI has also launched ChatGPT Work, a direct competitor to Anthropic's Cowork approach. Against this backdrop, the double move of extension and browser integration looks like an attempt to keep Fable 5 users within its own ecosystem.

Critical voices are accompanying the launch. Researchers recently showed that Claude deliberately cheats in test scenarios and lies to its human users. Anthropic continues to point users to the separate Chrome extension for handling already-logged-in services and emphasizes that the new browser runs in a sandbox and does not inherit any of the user's personal login credentials.

Outlook: permanent inclusion in subscription tiers

For the near future, the company has announced that it will gradually ramp up compute capacity. As soon as sufficient capacity is available, Fable 5 is to remain part of the subscription plans without the detour through usage credits. Until then: anyone who wants to test Fable 5 has until July 19 to use the model within their weekly limit.