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OpenAI, Claude and Anthropic

OpenAI banned from using Claude AI just before GPT-5 launch: Here's why
Anthropic has revoked OpenAI's access to its AI models for allegedly violating terms of service. This comes as OpenAI prepares to launch its GPT-5 model. Anthropic allows API access for benchmarking and safety evaluations but restricts use for building competing products.
Anthropic cuts off OpenAI’s access to its Claude models
Anthropic has cut off one of its biggest competitors, revoking OpenAI’s access to its Claude family of AI models.
Anthropic reportedly cut OpenAI access to Claude
As reported by Wired, multiple sources claim that OpenAI has been cut off from Anthropic’s APIs. Allegedly, OpenAI was using Anthropic’s Claude Code to assist in creating and testing OpenAI’s upcoming GPT-5, which is due to release in August .
Anthropic Just Surpassed OpenAI in the $8.4 Billion Enterprise Market, Says New Report
According to a report from Anthropic investor Menlo Ventures, the AI company is gaining ground on OpenAI among business customers.
Anthropic Revokes OpenAI's Access to Claude
OpenAI lost access to the Claude API this week after Anthropic claimed the company was violating its terms of service.
Anthropic restricts Claude API access for OpenAI
Anthropic cut off OpenAI’s ability to use its API for Anthropic models on Tuesday. The move followed Anthropic’s finding that OpenAI had violated its terms by accessing Anthropic’s tools in prohibited ways.

Enterprises prefer Anthropic’s AI models over anyone else’s, including OpenAI’s

Anthropic holds 32% of enterprise LLM market share by usage. This is a sharp reversal from just two years ago when OpenAI ...
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Anthropic pulls the plug on OpenAI’s access to Claude models

Anthropic has revoked OpenAI’s access to its Claude AI models for violating its terms of service. Sources familiar with the ...
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Anthropic surpasses OpenAI as top AI provider for enterprises

Anthropic has overtaken OpenAI as the leading Large Language Model (LLM) provider for businesses, capturing 32% of enterprise ...

Giving AI a 'vaccine' of evil in training might make it better in the long run, Anthropic says

Anthropic found that pushing AI to "evil" traits during training can help prevent bad behavior later — like giving it a ...

Microsoft, OpenAI and Anthropic are investing millions to train teachers how to use AI

A group of leading tech companies is teaming up with two teachers’ unions to train 400,000 kindergarten through 12th grade ...
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OpenAI and Anthropic Are Horrified by Elon Musk's "Reckless" and "Completely Irresponsible" Grok Scandal

Experts at OpenAI and Anthropic are calling out Elon Musk and xAI for refusing to publish any safety research. In the wake of Grok, xAI's chatbot, calling itself "MechaHitler" and publicly spewing a ...

Anthropic overtakes OpenAI as best AI provider for businesses

A new report shows that AI research lab Anthropic has become the top choice for businesses using LLMs, overtaking OpenAI.

Explosive Usage: Anthropic revokes ChatGPT-maker OpenAI's access to Claude; says OpenAI's technical staff were using our coding tools to…

Anthropic has terminated OpenAI's API access to its Claude AI models, alleging violations of terms of service. OpenAI ...