i wrote a guide on optimizing context usage
TL;DR · AI Summary
The "smart, fast, cheap" trilemma limitation of AI models has been broken by Cursor's Composer 2.5, which can simultaneously achieve all three characteristics.
Key Takeaways
- Six months ago, AI models could only choose two of three characteristics: smart,
- Cursor's Composer 2.5 model breaks traditional limitations by simultaneously ach
- According to CursorBench benchmark testing, Composer 2.5 performs excellently wi
Outline
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Six months ago, available AI models could only choose two of three characteristics: smart, fast, cheap, forming an inherent trade-off relationship.
Smart plus fast equals expensive, fast plus cheap equals dumb, cheap plus smart equals slow, which was the basic limitation of past AI models.
Cursor's Composer 2.5 model breaks the traditional two-of-three limitation and can simultaneously achieve smart, fast, and cheap characteristics.
Through TPS, average task cost, and CursorBench score testing, Composer 2.5 proves its triple capability.
User feedback indicates that Composer 2.5 not only performs well in benchmark tests but also completes tasks effectively in actual usage.
Mindmap
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- AI模型性能权衡变化
- 历史限制
- 三选二权衡
- 智能+快速=昂贵
- 快速+便宜=愚蠢
- 便宜+智能=缓慢
- 新突破
- Composer 2.5
- 同时实现三特性
- 基准测试验证
- 实际效果
- 用户体验
- 任务完成能力
Highlights
Key sentences worth saving and sharing.
With the models available 6 months ago, you could only pick 2 of 3: intelligent, fast, cheap
Intelligent + fast = expensive, fast + cheap = dumb, cheap + intelligent = slow
Now, with composer 2.5, this is no longer true
Cursor's new Composer 2.5 takes third on the Artificial Analysis Coding Agent Index and is ~10-60x lower cost than the higher-effort Opus 4.7 and GPT-5.5 variants above it
- intelligent
- fast
- cheap
intelligent + fast = expensive fast + cheap = dumb cheap + intelligent = slow
now, with composer 2.5," / X
i wrote a guide on optimizing context usage 6 months ago that i never posted. back then with the models available, you could only pick 2 of 3: 1. intelligent 2. fast 3. cheap intelligent + fast = expensive fast + cheap = dumb cheap + intelligent = slow now, with composer 2.5, this is no longer true and the post is obsolete. looking at TPS, avg cost per task, and score from cursorbench, it's clearly capable of all three but benchmarks are just benchmarks. what matters is how it feels to use and if it can actually accomplish your tasks. from the feedback so far, that's very much the case go try it out if you haven't already
Quote
Artificial Analysis
@ArtificialAnlys
May 21
Cursor's new Composer 2.5 takes third on the Artificial Analysis Coding Agent Index and is ~10-60x lower cost than the higher-effort Opus 4.7 and GPT-5.5 variants above it. This release puts Composer among the leading coding agent models, something that wasn’t clear for past
