AI programming tool Cursor announced that it has been connected to Anthropic's latest flagship model, Claude Opus 4.5, and is open to users. According to the official introduction, compared to the Claude Opus 4.1 previously provided in Cursor, the new model performs better on complex coding and inference tasks, while being billed at about one-third of the original price during the current activity period.
This launch comes with a limited-time price policy: as of December 5, 2025, users who call Claude Opus 4.5 in Cursor will be settled at the same low price range as the Claude Sonnet file, instead of the traditional Opus level unit price. The billing method is still based on token usage, which is deducted from the usage pool included in the user's subscription, and the excess is billed according to the actual usage, and the specific price is subject to the price list of the Cursor model.
In a broader context, Claude Opus 4.5 is positioned as one of the most powerful models in the current Anthropic family for inference and coding capabilities, targeting long conversations, complex codebase refactoring, and automated agent scenarios. Although the price has been significantly reduced compared to the previous version of Opus, it may still incur higher bills when calling at scale, so users should pay attention to monitoring usage and subscription limits to avoid misinterpreting "price reduction" as "almost free" or "unlimited usage".
FAQ
Q: What exactly does Claude Opus 4.5 do in Cursor?
A: It serves as a high-level code and intelligent assistant model that can complete tasks such as code generation, refactoring, debugging, and complex problem analysis within the editor.
Q: What is the price reduction of "3 times cheaper"?
A: During the event period, Opus 4.5 will be billed on Cursor on a Sonnet basis, which is approximately one-third of the original Opus 4.1 unit price, and the actual cost depends on the model price list and token usage.
Q: How long will the Sonnet price offer last?
A: Cursor announced that the per-Sonnet offer will end on December 5, 2025, after which it is expected to return to regular pricing for Opus 4.5.
Q: Do I need to open any additional plans to use Claude Opus 4.5?
A: The availability and availability of the quota depend on the subscription and usage pool configuration selected by the user in Cursor.
Q: Does this price reduction mean that the model can be called in large quantities without worry?
A: Not really. Although the unit price of Opus 4.5 has decreased significantly, the cost may still accumulate quickly in high-frequency or long-context scenarios, so it is recommended to combine usage monitoring and quota reminders to reasonably control the scale of calls.
