Composer 2.5 vs Gemini 3.5

The article discusses Cursor's release of the Composer 2.5 model, claiming it is currently the best coding model with excellent performance and cost-effectiveness.

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.

After the $10K Cursor credit expired, users reported that Agent Window mode almost completely replaced traditional IDEs; GPT-5.5 and Composer 2.5 performed well in different scenarios, especially Composer 2.5 Fast mode which is fast and good at generating flowcharts, but default output is not Markdown and cannot be copied directly as Markdown, affecting efficiency.

Cursor has released an SDK supporting Python and TypeScript for building custom AI agents using Composer 2.5, offering a 90% discount on Composer usage during a limited-time promotion.

The Cursor team achieved Composer 2.5 through reinforcement learning training rather than prompt engineering, with their large-scale RL program running inference on Fireworks, indicating that self-trained models will be the only way to maintain competitive moats after 2027.

Cursor released Composer 2.5, using Kimi as a base with 85% compute for self-training. It matches Claude Opus 4.7 performance at 1/10th the cost via targeted RL and 25x synthetic data.

The Cursor SDK now supports programmatic access to Composer 2.5's frontier intelligence features via Python and TypeScript, allowing developers to build their own AI agents with 90% discount during the long weekend.

Composer 2.5 is having a moment. Worth a look at how the team actually got here.

Alphabet announces a proposed $80 billion equity offering, including a $10 billion investment from Berkshire Hathaway and a $30 billion underwritten offering, oversubscribed to an expected total of ~$85 billion. In 2026, CapEx is expected to reach $180–$190 billion—six times larger than 2022—primarily for AI infrastructure and compute. Q1 revenue rose 22% YoY to $110 billion and operating income 30% YoY to $40 billion, with AI momentum driving Search, Cloud, YouTube, and Waymo.

Gemini 3.5 实时翻译功能已上线，支持 70 多种语言，实现自然流畅的语音翻译。

Google Cloud announced Gemini 3.5 Flash and Gemini Omni models at I/O, alongside Gemini Spark agents and CodeMender security tools, significantly enhancing enterprise AI capabilities in video generation, coding, and automation.

Google releases the Gemini 3.5 family, starting with 3.5 Flash for complex agentic workflows. It outperforms 3.1 Pro on coding and agent benchmarks and runs 4x faster, reaching 12x in Antigravity.

Google I/O announces the Agentic Era with Gemini 3.5 series models and multimodal Gemini Omni, enhancing AI agent capabilities and Gemini App interaction experiences.

Google released a series of new AI features and products, including the multimodal Gemini Omni model and Gemini 3.5 Flash, which can generate and edit videos through natural language conversation and perform excellently in agentic coding.

Google I/O 2026 introduced multiple AI products, featuring Gemini 3.5 Flash performance improvements, Anti-Gravity 2.0 with project management capabilities, and creative tools like Omni and Flow.

Google announced a transition from assistive AI to autonomous agents at I/O 2026, highlighting the Gemini 3.5 model series, upgraded Antigravity 2.0 agent-first platform, and new tools including Android CLI, Android Bench, and WebMCP to help developers build high-quality applications.