Cursor Adds GLM 5.3 and GLM 5.3 Flash to Its Model Picker

Cursor has added GLM 5.3 and GLM 5.3 Flash to the models available in Cursor. To add either model to the model picker, Cursor's model pages direct users to Cursor Settings > Models. (Cursor announcement; GLM 5.3 documentation; GLM 5.3 Flash documentation)

Both models support a 1M-token context window and have access to all of Cursor's agent tools. Each model supports three reasoning levels, Low, High, and Max, with High as the default. (Cursor's GLM 5.3 documentation; Cursor's GLM 5.3 Flash documentation)

Key Takeaways

• Two models: Cursor added Z.ai's open-weight GLM 5.3 and GLM 5.3 Flash; add either from Cursor Settings > Models.
• Same context and reasoning controls: both support a 1M-token context window and Low, High, and Max reasoning, with High as the default.
• GLM 5.3 for harder tasks: Cursor recommends GLM 5.3 for higher quality on harder tasks; Flash is the smaller, faster option and supports image inputs (Cursor's GLM 5.3 Flash documentation).
• Prices per million tokens: GLM 5.3 costs $1.4 input, $0.26 cache read, and $4.4 output, the same as GLM 5.2; Flash costs $0.15, $0.029, and $0.5 (Cursor models and pricing).
• Other Models pool: both draw from Cursor's third-party usage pool, with flat pricing across the full context window.

Which Model to Choose

Cursor describes GLM 5.3 as Z.ai's latest open-weight coding model and the successor to GLM 5.2. GLM 5.3 Flash is the smaller, faster option in the same family. Cursor recommends GLM 5.3 for higher quality on harder tasks. (Cursor's GLM 5.3 documentation; Cursor's GLM 5.3 Flash documentation)

Both model pages describe access to all Cursor agent tools. The models are served by Cursor through its inference partners. (Cursor's GLM 5.3 documentation; Cursor's GLM 5.3 Flash documentation)

Usage and Pricing

Cursor says its plans have two usage pools and that both GLM 5.3 models draw from the third-party Other Models pool, which is charged at each model's API price. Pro, Pro Plus, and Ultra include that pool; the Start plan does not. (Cursor's GLM 5.3 documentation; Cursor models and pricing)

Cursor's models and pricing page lists GLM 5.3 at $1.4 per million input tokens, $0.26 per million cache-read tokens, and $4.4 per million output tokens, the same per-token rates as GLM 5.2. It lists GLM 5.3 Flash at $0.15 input, $0.029 cache read, and $0.5 output. Both model pages say pricing is flat across the full context window, with no long-context surcharge and no separate cache-write fee. (Cursor models and pricing; Cursor's GLM 5.3 documentation; Cursor's GLM 5.3 Flash documentation)

At those rates, GLM 5.3 Flash costs about a ninth of GLM 5.3 per output token, so it suits high-volume edits where speed matters more than depth. Before a large run, check your account's current usage in the Other Models pool.

Bottom Line

Start with GLM 5.3 Flash for quick, cheap edits and switch to GLM 5.3 when a task needs more reasoning. For a quick comparison, pick a task from your backlog, run it with both models, and check the Other Models pool before using either for longer work.

Sources

• Cursor, "GLM 5.3"
• Cursor, "GLM 5.3 Flash"
• Cursor, "Models & Pricing" (per-token prices and usage pools; checked October 9, 2026)
• Cursor, "GLM 5.3 and GLM 5.3 Flash are now available in Cursor"