Anthropic logo, creators of Claude Opus 5

Claude Opus 5: Frontier Capability at Half the Price

Product LaunchesThe Agentic Era
Impact

At a glance

Date
July 24, 2026
Era
The Agentic Era (2025–2026)
Category
Product Launches
Impact
3 / 5
Organizations
Anthropic

What Happened

Anthropic released Claude Opus 5, approaching Claude Fable 5-level intelligence at roughly half the price. It introduced an 'effort' dial that let users trade off cost and capability per request, alongside stronger coding, agentic, and self-verification performance.

Why It Mattered

Compressed the gap between the frontier tier and the workhorse tier to weeks rather than a year, and made cost-capability trade-offs an explicit, user-controlled setting rather than a choice between separate models.

Organizations

Tags

Part of the The Agentic Era (2025–2026) era · Browse all product launches · View all 2026 milestones

Featured in these guides

History guide

History of Anthropic and Claude

A grounded history of Anthropic, from its 2021 founding and Constitutional AI through the Claude model family to the Claude 5 launch and the Mythos-class tier.

Frequently asked questions

When did Claude Opus 5: Frontier Capability at Half the Price happen?+

Claude Opus 5: Frontier Capability at Half the Price took place in July 24, 2026.

Who was behind Claude Opus 5: Frontier Capability at Half the Price?+

For Claude Opus 5: Frontier Capability at Half the Price, organizations involved were Anthropic.

Why was Claude Opus 5: Frontier Capability at Half the Price important?+

Compressed the gap between the frontier tier and the workhorse tier to weeks rather than a year, and made cost-capability trade-offs an explicit, user-controlled setting rather than a choice between separate models.

Which era of AI history does Claude Opus 5: Frontier Capability at Half the Price belong to?+

Claude Opus 5: Frontier Capability at Half the Price is part of the The Agentic Era era (2025–2026) — a significant development in the product launches category.

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Claude 4 / Opus 4: Frontier Reasoning

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Claude 4.5 / 4.6 Opus: Frontier Agentic Capability

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Claude Fable 5 and Mythos 5: A New Model Tier

Anthropic released Claude Fable 5 and Claude Mythos 5, the first models in the Claude 5 family and a new 'Mythos-class' tier positioned above Opus in capability. The two share the same underlying model: Fable 5 shipped for general availability with additional safeguards on dual-use capabilities, while Mythos 5 was restricted to approved organizations. The Mythos class had been introduced in April 2026 through Claude Mythos Preview, released via Project Glasswing to a limited set of cyberdefense and infrastructure organizations.

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Anthropic logo, creators of Claude 3
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Claude 3: Approaching Human-Level

Anthropic launched the Claude 3 family (Haiku, Sonnet, Opus), with Claude 3 Opus matching or exceeding GPT-4 on most benchmarks. It featured a 200K token context window, strong reasoning, nuanced instruction-following, and a 'personality' that users found distinctively thoughtful and careful.

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