Claude Code提示词砍八成？Opus 5又加回72%
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Claude Code update leaks Fable 5 will return in a weekly quota model.
According to Beating's monitoring, whistleblower @synthwavedd discovered during decompiling and code analysis of the latest version v2.1.190 of Anthropic's command-line AI assistant Claude Code that the update package contains multiple status messages hinting at the return of the top-tier cutting-edge model, Claude Fable 5. Unlike the previous version v2.1.186, which treated Fable 5 as a separate purchase of usage credits, the latest code removes the description of time-limited inclusion and introduces a weekly allotment model. The newly added code shows that when a user reaches their credit limit, the client will prompt "You have used up your included Fable 5 usage credits for this week" and suggest running `/usage-credits` to continue using it. Fable 5 was briefly released as Anthropic's "Mythos-class" cutting-edge model in early June of this year, but was subsequently discontinued globally due to export security restrictions and national security concerns imposed by the US government. Analysts believe that the update to the underlying state of Claude Code indicates that Anthropic is making technical preparations to quickly reopen this top-tier inference model to global users once policy permission or authorization is granted, through a combination of subscription and weekly limits.
ByteDance Seed 2.1 Pro preview released: Breaking into the top eight front-end developers on Code Arena, closing in on Claude Opus 4.6
According to Beating's monitoring, the benchmark platform Arena.ai officially released the evaluation results of ByteDance's unreleased new model, Seed 2.1 Pro Preview. In the Code Arena: Frontend benchmark test, which specifically evaluates AI's ability to build real-world web applications and collaboratively modify multiple files, the model ranked 8th globally with a score of 1539, comparable to Anthropic's flagship model, Claude Opus 4.6. The model demonstrated exceptional strength in React development and front-end UI interaction design, ranking in the top 10 globally in 5 out of 7 subcategories (including 7th in React, 14th in HTML, 6th in Brand & Marketing, 9th in Content Creation Tools & Data Analysis, and 10th in Reference-Based Design & Consumer Products). In these strong areas, only a very few top models, such as Anthropic's Claude series and Zhipu AI's newly open-sourced GLM-5.2, outranked it. According to official sources, Seed 2.1 Pro will be officially released to the public in the coming weeks. This is ByteDance's latest progress in the fields of code generation and intelligent agent construction, following the launch of Seed 2.0 Pro in mid-February this year.
Anthropic officially released Claude Opus 4.8, and Claude Code added "Dynamic Workflows".
According to Beating, Anthropic has officially released Claude Opus 4.8, an upgrade to Opus 4.7. It outperforms in multiple benchmark tests, particularly in coding, agency tasks, inference, and practical application capabilities. Opus 4.8 is described as a more reliable collaborator, with significant improvements in judgment, honesty (reducing unfounded conclusions), and long-term context retention. Pricing remains unchanged from the previous generation. This release also brings several new features: Claude Code now includes "Dynamic Workflows" for handling extremely large-scale coding tasks; "Effort Control" allows users to choose the model's thought process depth; and Fast Mode is 2.5 times faster with a significantly reduced price. The model is now fully available, and developers can access it via API. --------------------------------- Click the original link below to join the Beating · Lark AI news channel and monitor global AI hot topics and news 24/7.
Anthropic admitted that Claude Code had embedded steganography code targeting Chinese users, calling it an "abuse prevention experiment," and promised to roll back the code tomorrow.
According to Beating's monitoring, Thariq, an engineer on Anthropic's Claude Code team, publicly responded to the recent controversial "spy code" leak. He admitted that in March of this year, an experimental mechanism was embedded in the product. This mechanism detected whether the system timezone was Asia/Shanghai or Asia/Urumqi, whether the proxy hostname matched a list of Chinese resellers, and the keyword "AI Lab," and used special punctuation marks to inject hidden marker information into system prompts in a steganographic manner. He stated that the mechanism was intended to "prevent unauthorized resellers from abusing accounts and model distillation," but emphasized that the team has since implemented stronger protective measures and "has always intended to take it offline." The relevant PR has been merged, and it is expected to be completely rolled back in tomorrow's version release. This leak was made public on June 30 by the security account @IntCyberDigest, accompanied by two screenshots of code showing that Claude Code performed environmental fingerprinting on Chinese users without their knowledge. While Thariq's response was a direct admission, the timeline of "launching in March and only accelerating its withdrawal after being exposed" has still sparked widespread skepticism within the community. The comments section almost unanimously criticized Anthropic for "only announcing its withdrawal after being caught" and "secretly monitoring users without notifying them," severely damaging the company's long-standing image of "prioritizing security and ethics." --------------------------------- Click the original link below to join the Beating · Lark AI news channel for 24/7 monitoring of global AI hot topics and news.
Claude Fable 5 may introduce an authentication mechanism and be billed independently of the subscription plan.
According to BlockBeats, on June 30th, AI technology analysis expert @M1Astra revealed that analysis of Anthropic Claude's application code shows the new model Fable 5 requires users to purchase credits separately for access. These credits can only be added after user authentication and are billed independently of the subscription plan. On June 27th, Anthropic announced that "the company's most powerful cybersecurity model, Mythos 5, is available for redeployment to a number of US institutions. We are also continuing to work with the government to expand access to Mythos 5 and make FABLE 5 available to the public again." --------------------------------- Click the original link below to join the Beating · Lark AI news channel for 24/7 monitoring of global AI hotspots and news.
Claude Code can also be compromised? Accused of using strangers' passwords to modify databases across servers.
According to Beating's monitoring, a user submitted a report on GitHub stating that when using Anthropic's command-line AI assistant Claude Code, server IP addresses, usernames, and root passwords that did not belong to the user appeared out of thin air in the AI's dialogue context. Subsequently, the local AI assistant directly read these passwords, automatically connected to someone else's server via SSH, and performed write modifications to the database. In other words, the user's AI, using someone else's account and password, mistakenly connected to and modified someone else's production database. Community technical staff analyzed that the root cause of the problem may be the failure of the "prompt prefix caching" isolation mechanism of the large model. To reduce computational costs and speed up the process, the cloud-based large model caches the preceding text of user dialogues; if the cache keys between different users collide or become confused, someone else's confidential cache may be incorrectly concatenated into your dialogue. If this conjecture is true, any developer using Claude Code faces the risk of their server usernames, passwords, and core source code being obfuscated and leaked to other users. However, it cannot be ruled out that this is merely a case of the model's illusion coincidentally guessing the real IP address and weak password, or that local project history contaminated the context. This issue has been tagged with the security category (area:security) by GitHub's automated system, and all parties are awaiting official verification and conclusions.