Anthropic Unveils Opus 5: Cost-effective AI Model With Enhanced Capabilities
WHO:
The Verge - Anthropic spokesperson Danielle Ghiglieri stated, “We continue to work with our government partners to conduct their own independent testing of our models. This includes Opus 5.”
Anthropic - Anthropic is the organization releasing the new AI model, Claude Opus 5.
WHAT:
The Verge - Anthropic is marketing Opus 5 especially to its enterprise customers, stating it is best for knowledge work and biology.
The Verge - Customers can choose “Fast mode” for Opus 5, which offers higher speeds for double the price.
Axios - Anthropic's Claude Opus 5 is its fourth model release in less than two months.
ZDNET - Opus 5 targets coding, knowledge work, and agent workflows.
Engadget - Anthropic expects Opus 5 "classifiers to intervene around 85% less often than they do for Fable 5."
Engadget - Opus 5 is not included in Anthropic's 30-day data retention policy.
TechCrunch - Opus 5 is described as both cheaper and less restrictive than Fable, likely making it preferable in most use cases.
Axios - Anthropic's Claude Opus 5 model is described as "the least susceptible to being tricked into misuse."
ZDNET - Opus 5 improves coding, reasoning efficiency, and prompt-cache-friendly tool use.
Anthropic - Opus 5 is priced at $5 per 1 million input tokens and $25 per 1 million output tokens, the same pricing as Opus 4.8.
Anthropic - Opus 5 is said to come close to Fable 5 performance at half the price.
WHERE:
Anthropic - Claude Opus 5 is the new default model on Claude Max.
WHEN:
Anthropic - Claude Opus 5 is available today.
WHY:
The Verge - Anthropic aims to address recent controversies over allegedly hidden usage caps and the AI money squeeze.
CNET - The latest Claude model prioritizes cost efficiency.
Anthropic - The model is designed to deliver performance close to its most powerful model while being cost-effective.
HOW:
The Verge - Opus 5 includes an option for automatic fallbacks to a lower-tier model when safeguards mandate that it declines a user’s request.
Engadget - Opus 5 has less restrictive safeguards than the Fable model.
ZDNET - Opus 5 uses fewer tokens for similar quality compared to previous models.
(UPDATED July 25, 2026 05:50 UTC)
Anthropic is actively collaborating with government partners to conduct independent testing of its latest model, Opus 5, according to spokesperson Danielle Ghiglieri. The company is marketing Opus 5 primarily to enterprise customers, highlighting its suitability for knowledge work and biology, and offering a “Fast mode” for those willing to pay double for increased speeds. To address recent concerns over hidden usage caps, Opus 5 also features automatic fallbacks to a lower-tier model when necessary safeguards require it to decline a user's request.
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(UPDATED July 24, 2026 21:19 UTC)
Anthropic has just released its fourth model, Claude Opus 5, in less than two months, marking a significant step in their development. This latest model is designed to enhance coding, knowledge work, and agent workflows, while also prioritizing cost efficiency. Notably, Opus 5 features less restrictive safeguards compared to its predecessor, the Fable model.
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(UPDATED July 24, 2026 19:26 UTC)
Anthropic has announced that its new Opus 5 is expected to have classifiers that intervene around eighty-five percent less often than those for Fable 5. Additionally, Opus 5 will not be subject to Anthropic's 30-day data retention policy, which sets it apart from previous models. The company describes Opus 5 as both cheaper and less restrictive than Fable, suggesting it may be the preferred choice for many applications.
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(UPDATED July 24, 2026 18:24 UTC)
Anthropic has just released its new AI model, Claude Opus 5, which is now the default model on Claude Max. This latest version is touted as the least susceptible to misuse, while also improving coding, reasoning efficiency, and tool use, all at the same pricing as its predecessor, Opus 4.8, at $5 per million input tokens and $25 per million output tokens, making it a cost-effective option that approaches the performance of Fable 5.