Hey @thegreatbey, let’s go point by point.
Codex 5.3 Spark (Medium, 128k): what you see in the picker is correct. Spark is the Codex 5.3 variant with low reasoning effort. It shows as Medium, has a 128k context, and it’s in the Auto+Composer pool, basically free for Pro. There aren’t two Sparks. I think Warren meant Codex 5.3 on high effort, not Spark, and just mixed up the terms. Spark is good for small edits because it’s cheap and fast, not because it’s Extra High.
Composer 2 vs Composer 2 (fast): regular Composer 2 is still there, it’s just behind a toggle. Hover Composer 2 in the picker, click Edit, then turn off Fast Mode to get regular Composer 2. @kevinn showed it here: Composer 2 Unavailable in the Agent Window - #7 by kevinn
Grok 4.20 with no description: yep, that’s a UI gap, I’ll pass it to the team. The model description is in the docs: Grok 4.20 | Cursor Docs
Grok 4.20 price vs Composer 2 (fast): the logic isn’t cheaper = worse. Composer 2 is our in-house model, optimized for agentic coding in Cursor like tool use, precise file edits, and terminal work. It lives in the Auto+Composer pool with its own economics. Grok 4.20 is billed at the provider’s API rates. Comparing them purely by input/output price doesn’t mean much since they have different strengths, context, and behavior on agent tasks. Best way to choose is to try both on your typical tasks and compare the results, not the price tag.