OpenAI dropped GPT-4.1, stealing the spotlight with Mini and Nano variants. Initially teased as Quasar Alpha and Optimus Alpha on OpenRouter, this release outshines GPT-4o with a 1M token context and killer coding skills.
Critics are debating if 4.1 is a larger number than 4.5, depends if you read it as 4.10 or 4.1..

Joking aside is a good model and here's some info about it.
Key Highlights
- Massive Context: 1M token window for deep, complex tasks.
- Coding Prowess: Scores 55% on SWE-Bench Verified, no reasoning needed.
- Affordable Power: $2/$8 per 1M tokens (input/output), with Mini at $0.40/$1.60.
- Stealth Drop: OpenRouter’s Quasar and Optimus were GPT-4.1 testbeds, now retired.
- Scalability Hiccups: High demand caused capacity concerns pre-launch.
How It Shines
- Enhanced Instructions: Sharper, more precise responses.
- Cost-Effective Variants: Mini and Nano make intelligence dirt cheap.
- Collaborative Testing: OpenRouter’s alpha phase ensured a polished release.
Launched with buzz and a few scaling worries, GPT-4.1 is OpenAI’s bold step to dominate the AI race!