Trending Now - Anthropic Faces User Outcry Over Claude AI Performance Issues

WHO:

VentureBeat - Anthropic, a high-flying AI company, is facing backlash from developers and AI power users.

Fortune - Boris Cherny, the Anthropic executive who leads its Claude Code product, is involved in responding to user complaints.

Fortune - Stella Laurenzo, a senior director of AI at AMD, conducted an analysis of Claude's performance.

Fortune - Dimitris Papailiopoulos, a principal research manager at Microsoft, expressed frustration with Claude Code.

WHAT:

Politico - At least two U.S. federal agencies and three congressional committees have reached out to Anthropic to test Claude Mythos, quietly bypassing Trump's ban.

Fortune - Anthropic's annualized recurring revenue (ARR) is now $30 billion, up from $9 billion at the end of 2025, reflecting a significant increase in user adoption.

Fortune - Dimitris Papailiopoulos, a principal research manager at Microsoft, reported on X that he has experienced "incredibly frustrating sessions" with Claude Code, stating that even at maximum effort, it is "extremely sloppy, ignores instructions, and repeats mistakes."

Fortune - Anthropic announced that it has trained a new model called Mythos, which is significantly more capable than its Opus AI model but is not yet being released to the public due to security concerns.

Fortune - Uber's CTO Praveen Neppalli Naga stated that the company's use of AI coding tools, particularly Anthropic's Claude Code, has maxed out its full-year AI budget just a few months into 2026.

Techmeme - Anthropic is preparing to release Claude Opus 4.7, along with a new AI-powered tool for designing websites and presentations, as soon as the week of April 10th, 2026.

Fortune - Anthropic suffered a series of outages as usage increased and has introduced stricter usage limits during peak hours.

VentureBeat - Users accuse Anthropic of degrading the performance of Claude Opus 4.6 and Claude Code.

Fortune - Anthropic's Claude AI model has seen a significant decline in performance, with users reporting failures to follow instructions and increased mistakes.

Fortune - Anthropic's recent valuation is $380 billion, and it is reportedly preparing for an IPO.

Fortune - Anthropic's annualized recurring revenue (ARR) is now $30 billion, up from $9 billion at the end of 2025.

Fortune - Claude Code was launched in early 2025 and operates as a command-line agent for coding tasks.

Fortune - Users reported that Claude has become "unusable for complex engineering tasks," according to Laurenzo's analysis.

WHERE:

Fortune - The backlash is occurring on social media platforms where developers and users are voicing their complaints.

WHEN:

Fortune - The performance issues with Claude AI have been reported recently, particularly noted from late February into early March 2026.

Fortune - The changes to Claude's performance were made in early March 2026 when the default setting was shifted to "medium effort."

Fortune - The introduction of "adaptive thinking" in Claude Opus 4.6 occurred in early February 2026.

WHY:

Fortune - User dissatisfaction with Claude’s performance decline and anger at Anthropic’s perceived lack of transparency could potentially derail the company’s growth as it seeks to attract investors for a potential IPO.

Fortune - There is speculation that Anthropic may be facing more acute constraints on computing resources than its competitors due to fewer multibillion-dollar deals for data center capacity.

Fortune - Users believe the performance decline is linked to recent changes made by Anthropic to economize on the number of tokens processed per request.

Fortune - Speculation exists that Anthropic may be running short of computing resources due to fewer multibillion-dollar deals for data center capacity compared to rivals.

HOW:

Fortune - Anthropic plans to test defaulting Teams and Enterprise users to high effort to enhance performance, even if it results in increased token consumption and latency.

Fortune - Anthropic plans to test defaulting Teams and Enterprise users to high effort in order to enhance performance, even if it results in increased token consumption and latency.

Fortune - To resolve some user issues, Anthropic plans to test defaulting Teams and Enterprise users to high effort, which may increase token consumption and latency.

Fortune - Anthropic reduced the default “effort” level of Claude in response to user feedback about high token consumption.

Fortune - Cherny stated that Claude Code users can manually change the tool’s effort levels, but Pro version users cannot change the default setting at this time.

(UPDATED April 15, 2026 04:00 UTC)

At least two U.S. federal agencies and three congressional committees have reached out to Anthropic to test Claude Mythos, quietly bypassing Trump's ban. Meanwhile, Anthropic's annualized recurring revenue has skyrocketed to $30 billion, a significant jump from $9 billion at the end of 2025, though user dissatisfaction with Claude's performance and concerns over transparency could hinder the company's growth as it seeks investors for a potential IPO. In response to these challenges, Anthropic plans to test defaulting Teams and Enterprise users to high effort to enhance performance, even if it leads to increased token consumption and latency.

(UPDATED April 15, 2026 01:22 UTC)

Anthropic has announced the development of a new AI model called Mythos, which is more advanced than its previous Opus AI model, but it will not be released to the public yet due to security concerns. Meanwhile, Uber's CTO revealed that the company's use of AI coding tools, particularly Anthropic's Claude Code, has already exhausted its full-year AI budget just a few months into 2026, while a Microsoft research manager expressed frustration with Claude Code's performance, describing it as sloppy and prone to repeating mistakes. To address these issues, Anthropic plans to test a high-effort default setting for Teams and Enterprise users, aiming to improve performance despite potential increases in token consumption and latency.

(UPDATED April 14, 2026 23:14 UTC)

Anthropic is set to release Claude Opus 4.7 along with a new AI-powered tool for designing websites and presentations, potentially as soon as the week of on Friday. However, the company has faced a series of outages due to increased usage and has implemented stricter limits during peak hours. To address user concerns, Anthropic plans to test defaulting Teams and Enterprise users to high effort, which could lead to higher token consumption and increased latency.

(UPDATED April 14, 2026 21:21 UTC)

Anthropic, a prominent AI company valued at $380 billion, is facing significant backlash from developers and power users over the declining performance of its Claude AI model, particularly Claude Opus 4.6 and Claude Code, which users claim have become unusable for complex engineering tasks. Boris Cherny, the executive leading Claude Code, is actively responding to these complaints, while an analysis by AMD's Stella Laurenzo highlights that the recent changes made in early March to economize on token processing may be at the heart of the issues. Frustration has also been voiced by Microsoft’s Dimitris Papailiopoulos, as users express their dissatisfaction on social media platforms regarding the AI's failures to follow instructions and increased mistakes.