Anthropic released Claude Opus 5 on July 24, 2026, positioning it as a near-frontier large language model (LLM) for coding, enterprise workflows, and agentic tasks. <cite index="1-7">The model is priced at $5 per million input tokens and $25 per million output tokens, unchanged from its predecessor, Opus 4.8.</cite> <cite index="13-8">Claude Fable 5 and the limited-availability Mythos 5 cost $10 per million input tokens and $50 per million output tokens</cite> — placing Opus 5 at roughly half the token rate of the current flagship tier.
Availability and Platform Positioning
<cite index="20-1">Claude Opus 5 is available immediately as `claude-opus-5` on the Claude application programming interface (API), Amazon Bedrock, Google Cloud, Microsoft Foundry, claude.ai, Claude Code, and Cowork.</cite> <cite index="1-8">It becomes the new default model on Claude Max, Anthropic's premium consumer tier, and the strongest model available on Claude Pro.</cite> <cite index="2-8">For business users and consumers who want to collaborate on complex tasks, Opus 5 is available to Pro, Max, Team, and Enterprise users.</cite>
Benchmark Performance
<cite index="10-10,10-11,10-12,10-13">On Frontier-Bench v0.1, Opus 5 more than doubles Opus 4.8's score and surpasses all other models; on CursorBench 3.2, it performs within 0.5% of Fable 5's peak at half the cost per task; on ARC-AGI 3, it scores three times as high as the next-best model; and on OSWorld 2.0, it surpasses Fable 5's best result at just over a third of the cost.</cite> <cite index="5-3">On coding and knowledge work evaluations including Frontier-Bench and GDPval-AA, Opus 5 sets a new state-of-the-art among Anthropic's models, though it remains behind Mythos 5 on cybersecurity tasks.</cite>
<cite index="1-3">Opus 5 is now Anthropic's most capable generally available model for scientific research — scoring 10.2 percentage points higher than Opus 4.8 on the company's internal chemistry benchmark — though Anthropic acknowledged that Mythos 5 remains the stronger model for long-horizon, open-ended work like autonomous drug design campaigns.</cite>
Effort Toggle and Cost Controls
<cite index="18-7">Amid growing concerns from enterprise customers about expensive AI bills, Opus 5 ships with a feature enabling users to toggle how much effort — low, medium, or high — the model expends completing a task or answering a prompt.</cite> <cite index="3-10">A Fast mode is also available, running approximately 2.5 times faster than the default speed at twice the base price.</cite> Anthropic's framing throughout the launch centres on per-task cost rather than isolated peak scores.
Enterprise Signals
Early enterprise feedback referenced in Anthropic's launch materials underscored the cost-efficiency narrative. <cite index="20-6">Box reported Opus 5 beating Opus 4.8 by 8% overall — 11% on data analysis and 17% on due diligence — while an unnamed legal partner recorded 26% fewer tokens on average at maximum reasoning.</cite> <cite index="17-6,17-7">Wade Foster, chief executive of Zapier, said Opus 5 topped his company's AutomationBench leaderboard without spending more tokens than prior Claude models, completing a full churn-prevention workflow from start to finish: "Previous models didn't pass; Opus 5 hit 100%."</cite>
Model Lineup Context
<cite index="20-9">The current Anthropic lineup now runs Opus 5 as the agentic-coding default, Fable 5 as the capability ceiling, Sonnet 5 for speed and cost, and Mythos 5 as the invitation-only security tier.</cite> <cite index="6-6">Opus 5 is launching only two months after Opus 4.8, which became available on May 28, 2026.</cite> <cite index="17-10">Enterprise AI spending is no longer experimental, and inference costs — the price of actually running these models at scale — have become a board-level line item</cite>, a dynamic Opus 5's pricing structure is explicitly designed to address. <cite index="1-5">Reuters reported in February that Anthropic was valued at roughly $380 billion in its latest funding round, with annualized revenue climbing from about $1 billion at the end of 2024 to a projected $9 billion by the end of 2025.</cite>