00:00
Anthropic launches Claude Marketplace for partner plugins and agents
Anthropic launched Claude Marketplace, a place to discover plugins, agents, and services from its partners.
1 official
The Wire
Anthropic, newest first.
Linked and quoted from the labs, the press and the people using them. Times in UTC.
The Wire
Every development we picked up, including smaller stories beyond the labs. Newest first, times in UTC.
Wednesday 23 September
2 developments00:00
Claude discovers novel enzyme system with CRISPR-like repeats
Anthropic reports that Claude discovered a novel enzyme system with CRISPR-like repeats.
1 official
Tuesday 22 September
4 developments16:44
Anthropic launches Opus 5.5 with higher Claude Code session limits
Anthropic launched Opus 5.5 with 20% higher 5-hour session limits for Claude Code. Pro, Max and Team users received a banked usage reset they can apply from Settings until October 22.
1 official1 community
09:27
Anthropic builds biology lab for Claude-guided drug experiments
Anthropic is setting up its own biology lab to move AI-driven drug development beyond computer simulations. The lab will have Claude guide robots through drug experiments.
1 coverage
02:35
Anthropic resolves elevated errors affecting multiple Claude models
Anthropic reported elevated errors across multiple models, lasting about 98 minutes. The incident has been resolved.
2 official
AnthropicIncident · 22 Sep
Anthropic resolves elevated errors affecting multiple Claude models
Major outage of an hour or more
00:00
Anthropic publishes task cost details for Opus 5.5
Anthropic published a page titled What a task costs on Opus 5.5. The page covers the cost of running tasks on the Opus 5.5 model.
2 official7 coverage12 community
AnthropicUpdate · 22 Sep
Claude Opus 5.5
New model generation from a lab
$4.00 / $20.00per M tokens, in / out
1Mcontext
-20%price change
Sunday 20 September
1 development08:35
Anthropic reportedly delays IPO to November 2026
Anthropic is reportedly postponing its IPO from October to November 2026 to present strong Q3 results. Investors expect a roughly $2 trillion valuation, though rising infrastructure costs and unresolved security risks complicate the listing.
1 coverage
AnthropicMoney · 20 Sep
Anthropic
Round of $1B+ or valuation of $20B+
$2000Bvaluation
Friday 18 September
6 developments21:44
Accenture becomes Anthropic's first embedded evaluator
Accenture is set to become Anthropic's first embedded evaluator, according to TechCrunch coverage. The engagement is described as high-risk consulting work.
1 coverage
20:15
Anthropic opens AI-powered biology research lab
Anthropic has opened a wet lab for biology research in the San Francisco Bay Area. Robots at the facility will be powered by Anthropic's Claude large language models.
1 coverage
17:20
Researchers use Claude to breach OpenAI internal systems in 72 hours
Three security researchers used Anthropic's Claude models to break into OpenAI's internal systems through its community forum in under 72 hours. The team said Opus 5 bypassed a common security measure that its predecessor could not.
1 coverage
AnthropicIncident · 18 Sep
Claude Opus 5
Security incident
17:06
Anthropic CEO outlines plan to pace frontier AI development
Anthropic CEO Dario Amodei outlined a plan to pace the frontier of AI development, proposing independent safety evaluators and coordination between AI labs in democratic countries. The proposal drew industry support and pushback from Nvidia's Jensen Huang.
1 coverage
14:06
Anthropic reports Claude leads 26 percent of its research work
Anthropic released metrics on how it builds its own AI, saying Claude leads 26 percent of work on future models, up from under one percent in February. The scoring comes from Claude itself and the underlying scale is unclear.
1 coverage
13:30
Researchers use Claude to breach OpenAI employee account
Researchers used Claude to reach an OpenAI employee account and sensitive GitHub data. The incident involved unauthorized access to OpenAI systems.
2 coverage
AnthropicIncident · 18 Sep
Claude
Security incident
Thursday 17 September
2 developments23:44
Anthropic shares metrics to monitor AI development speed
Anthropic published a blog post detailing three new metrics it says should be measured to monitor the pace of AI development. The post follows CEO Dario Amodei's call for leading model makers to coordinate on slowing development.
1 coverage
18:35
Anthropic rebuilds Claude Code Projects with parallel agent workflows
Anthropic has rebuilt Projects in Claude Code so a coordinator splits tasks across parallel cloud threads that independently open pull requests and run tests. All threads share a common memory, and the beta is available to select Pro and Max subscribers.
1 coverage
Wednesday 16 September
1 development16:26
Anthropic merges Claude Cowork and chat into one Claude
Anthropic says Claude Cowork and Claude chat are now a single Claude experience. The change is described in a company blog post.
3 coverage1 community
Tuesday 15 September
1 development11:14
Anthropic resolves error spikes affecting Claude Mythos 5.1 and Fable 5.1
Anthropic reported intermittent error spikes affecting Claude Mythos 5.1 and Claude Fable 5.1. A fix was deployed and the incident was resolved after about 86 minutes.
1 official
AnthropicIncident · 15 Sep
Claude Mythos 5.1
Major outage of an hour or more
Monday 14 September
1 development19:14
Claude Cowork on Windows degraded, issue resolved
Claude Cowork on Windows experienced degraded functionality, which has now been resolved. Microsoft released a September 14 Windows update that fixes the issue.
1 official
AnthropicIncident · 14 Sep
Claude Cowork on Windows degraded, issue resolved
Major outage of an hour or more
Saturday 12 September
1 development14:05
Nvidia in talks to invest up to $10B in Anthropic IPO
Nvidia is in talks to invest up to $10 billion in Anthropic's planned IPO, according to Reuters. The IPO targets a $2 trillion valuation, which would be the largest in history.
2 coverage
AnthropicMoney · 12 Sep
Anthropic
Round of $1B+ or valuation of $20B+
$10Braised
$2000Bvaluation
Friday 11 September
1 development14:37
Claude services hit by elevated errors, now resolved
Anthropic reported elevated errors affecting Claude services. The issue lasted from 13:57 to 14:20 UTC and has been resolved.
1 official
Thursday 10 September
1 development23:24
Elevated latency on Claude API resolved after 101 minutes
Anthropic reported elevated latency on the Claude API for some users. The issue was mitigated and marked resolved after about 101 minutes.
1 official
Wednesday 9 September
1 development15:02
Anthropic researcher resigns over self-improving AI concerns
Anthropic researcher Jacob Coxon resigned over fears of AI extinction and called for pacing agreements between labs. He warned against self-improving AI.
2 coverage
Sunday 6 September
1 development20:47
Authors dispute publisher claims in Anthropic settlement
Authors say publishers appear to be claiming more than their fair share of settlement payments in the Anthropic case. The dispute concerns how settlement funds are divided.
2 coverage
AnthropicMoney · 6 Sep
Anthropic
Round of $1B+ or valuation of $20B+
$1.5Braised
Friday 4 September
1 development20:08
Anthropic resets Claude Code weekly limits for Max users
Anthropic reset weekly Claude Code usage limits for everyone on a Claude Max plan. The reset followed the launch of Fable 5.1 so users could keep building over the long weekend.
1 official
Thursday 3 September
2 developments16:23
Anthropic resolves elevated errors affecting multiple Claude models
Anthropic reported elevated errors affecting Claude Mythos 5.1, Claude Fable 5.1, and Claude Opus 5. The issue was resolved and impact ended at 9:16 PT.
1 official
AnthropicIncident · 3 Sep
Anthropic resolves elevated errors affecting multiple Claude models
Major outage of an hour or more
12:56
Anthropic resolves elevated errors on Claude Sonnet 5
Anthropic reported elevated errors affecting Claude Sonnet 5. The incident, lasting about 19 minutes, has been resolved.
1 official
Wednesday 2 September
2 developments21:44
Claude Sonnet 5 errors resolved after 26 minutes
Anthropic reported elevated errors affecting Claude Sonnet 5. The issue was resolved after about 26 minutes of impact.
1 official
01:24
Anthropic resolves delays in Claude credit purchases
Anthropic reported delays in credit purchases on its Claude status page. The issue has been resolved.
1 official
Tuesday 1 September
4 developments18:35
Anthropic ships Fable 5.1 and resets Claude Code usage limits
Anthropic shipped Fable 5.1 and reset the 5-hour and weekly usage limits for all Claude Code users.
1 official
18:07
Claude platform and Office 365 add-in had degraded performance
Anthropic reported degraded performance on platform.claude.com and the Claude add-in for Microsoft Office 365. The issue was resolved after about 62 minutes.
1 official
17:53
Anthropic releases Claude Fable 5.1 and Claude Mythos 5.1
Anthropic announced Claude Fable 5.1 and Claude Mythos 5.1. The announcement links to Anthropic's site and drew discussion on Hacker News.
5 coverage1 community
AnthropicUpdate · 1 Sep
Claude Fable 5.1
New flagship model
$10.00 / $50.00per M tokens, in / out
1Mcontext
-45%price change
16:22
Claude for Microsoft Office 365 had degraded performance
Claude for Microsoft Office 365 experienced degraded performance for about 20 minutes. Anthropic reports the issue is resolved.
1 official
Monday 31 August
2 developments20:36
Claude.ai and Claude Code see degraded performance
Anthropic reported degraded performance affecting claude.ai and Claude Code. The issue was resolved after about 74 minutes of impact.
1 official
17:52
Claude.ai performance degraded for 29 minutes
Claude.ai experienced degraded performance for about 29 minutes. Anthropic reports the issue has been resolved.
1 official
Saturday 29 August
2 developments18:41
Sony Music and Warner sue Anthropic over copyright claims
Sony Music and Warner filed a lawsuit against Anthropic alleging a broad campaign of intellectual property theft. The suit focuses on accusations of illegal piracy.
2 coverage
16:47
Anthropic swaps its 50% Claude Code limit boost for a permanent 25%
Anthropic said standard weekly Claude Code limits will rise permanently by 25% from 14 September for Pro, Max, Team and seat-based Enterprise plans, replacing the temporary 50% increase users had until then. Against the limits they had, that is about a 17% cut.
1 official
Friday 28 August
2 developments20:21
Anthropic resolves elevated errors on Claude Code and Claude Cowork
Anthropic reported elevated errors affecting Claude Code and Claude Cowork on the web. The issue was resolved after about 179 minutes.
1 official
AnthropicIncident · 28 Aug
Anthropic resolves elevated errors on Claude Code and Claude Cowork
Major outage of an hour or more
00:19
Anthropic previews MHS standard for AI agents controlling machines
Anthropic previewed the Model Hardware Standard, a standard that lets AI agents control machines such as microscopes. It was developed with medical research institute HHMI and is accessible to a limited number of users so far.
2 coverage
Wednesday 26 August
1 development21:37
Anthropic signs $45B compute deal with Nscale
Anthropic has agreed a $45 billion deal with infrastructure provider Nscale. It continues a streak of large compute commitments by the company.
2 coverage
AnthropicMoney · 26 Aug
Anthropic
Round of $1B+ or valuation of $20B+
$45Braised
Tuesday 25 August
1 development17:50
Anthropic adds shared memory across Claude chat and Cowork
Anthropic is giving Claude a shared memory across chat and Cowork. Users no longer have to repeatedly brief the AI on projects, preferences, and other context.
2 coverage
Monday 24 August
3 developments20:26
Anthropic resolves Claude.ai login issue
Anthropic reported an issue logging into Claude.ai. The incident was resolved after about 15 minutes.
1 official
17:16
Anthropic resolves Claude.ai login errors
Anthropic reported a minor incident causing errors when logging into Claude.ai. The issue was resolved after about three minutes.
1 official
08:30
Anthropic resolves elevated errors affecting Claude models
Anthropic reported elevated errors on requests to Claude models, including Claude Opus 5 and Fable 5. The incident lasted about 204 minutes and has been resolved.
1 official
AnthropicIncident · 24 Aug
Claude Opus 5
Major outage of an hour or more
Thursday 20 August
3 developments23:41
Anthropic reportedly aims to match SpaceX record IPO raise
Anthropic is privately hoping its upcoming IPO will match or surpass SpaceX's record-breaking IPO, according to anonymous sources cited by Bloomberg. The company is reportedly pushing to go public ahead of rival OpenAI.
2 coverage
19:42
Anthropic resolves elevated errors on requests to multiple models
Anthropic reported elevated errors on requests to multiple models. The issue was resolved after about 26 minutes.
1 official
19:01
Anthropic resolves elevated errors on Google connectors
Anthropic reported elevated errors affecting Google connectors. The issue has been resolved after about 29 minutes.
1 official
Wednesday 19 August
1 development11:02
Anthropic resolves degraded performance for Claude Opus 5 and Haiku 4.5
Anthropic reported degraded performance affecting Claude Opus 5 and Claude Haiku 4.5. The incident, lasting about 80 minutes, has been resolved.
1 official
Tuesday 18 August
2 developments19:35
Anthropic extends higher Claude Code weekly limits through August 31
Anthropic extended the 50% higher Claude Code weekly limits through August 31. The company said it hopes to make the increase permanent, though capacity may stay tight.
1 official
19:01
Claude Opus 5 performance issue resolved after outage
Anthropic reported degraded performance affecting multiple models, including Claude Opus 5. The issue lasted from 16:11 to 18:23 UTC and has been resolved.
1 official
Monday 17 August
2 developments23:56
Anthropic annualized revenue reaches $65B
Anthropic's annualized revenue has risen to $65 billion. The company added $18 billion in annualized revenue over two months.
3 coverage
AnthropicMoney · 17 Aug
Anthropic
Round of $1B+ or valuation of $20B+
$1000Bvaluation
15:29
Anthropic resolves degraded performance for Claude Opus 5 and Sonnet 5
Anthropic reported degraded performance affecting Claude Opus 5 and Claude Sonnet 5. The incident, lasting about 93 minutes, has been resolved.
1 official
Sunday 16 August
1 development22:34
Claude services disruption resolved after 36 minutes
An issue affected claude.ai, platform.claude.com, the Claude API, Claude Code, and Claude Cowork. The incident, rated critical, lasted 36 minutes and has been resolved.
1 official
AnthropicIncident · 16 Aug
Claude services disruption resolved after 36 minutes
Major outage of an hour or more
Saturday 15 August
1 development00:27
Claude Fable 5 errors resolved after outage
Anthropic reported elevated errors affecting Claude Fable 5. The issue was resolved after impacting services from 20:00 Aug 14 to 00:11 Aug 15, 2026 UTC.
1 official
Friday 14 August
3 developments23:31
Anthropic details unreleased Model 2 in AI risk report
Anthropic revealed it has developed an AI model more capable than Claude Mythos 5. The company detailed the algorithm in its latest AI alignment report, which outlines potential risks from its large language models.
2 coverage
21:58
Claude API, Code and Cowork disruption resolved
An issue affected the Claude API, Claude Code and Claude Cowork. The disruption lasted from 20:14 to 20:38 UTC and has been resolved.
1 official
AnthropicIncident · 14 Aug
Claude API, Code and Cowork disruption resolved
Major outage of an hour or more
00:51
Claude Code on the web hit by brief service disruption
Anthropic reported a service disruption affecting Claude Code on the web and related services. The issue was resolved after impact from 23:42 to 00:50 UTC.
1 official
Thursday 13 August
1 development16:08
Anthropic resolves elevated errors affecting Claude models
Anthropic reported elevated errors affecting Claude Mythos 5, Claude Fable 5, and Claude Sonnet 5. The issue was resolved after about 95 minutes.
1 official
AnthropicIncident · 13 Aug
Claude Mythos 5
Major outage of an hour or more
Wednesday 12 August
3 developments22:26
Anthropic adds watermarks to Claude outputs, users complain
Anthropic introduced a watermarking system for Claude outputs. Some users complained on social media that it will reveal their use of Claude at work or in classes.
2 coverage
18:07
Anthropic resolves degraded performance across multiple Claude models
Anthropic reported degraded performance affecting multiple models. The issue has been resolved.
1 official
13:51
Anthropic hires Robert Mahari to lead Claude for Legal
Robert Mahari joined Anthropic as its first Head of Claude for Legal. He will lead deployment and expansion of the Claude AI model across the legal industry.
2 coverage