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Posts4/14/2025 by OpenRouter

Quasar Alpha and Optimus Alpha Reveal

OpenAI GPT-4.1 ⭐️

GPT-4.1 is now generally available with a 1M token context.
There’s a Mini and a Nano version as well, but Quasar and Optimus were tests of the large one (4.1).

💰 Pricing

GPT-4.1

  • $2.00 input
  • $0.50 cached input
  • $8.00 output per 1M tokens

GPT-4.1 Mini

  • $0.40 input
  • $0.10 cached input
  • $1.60 output per 1M tokens

GPT-4.1 Nano

  • $0.10 input
  • $0.025 cached input
  • $0.40 output per 1M tokens

📢 Details

  • Announcement on X: OpenRouter X Announcement
  • Immediate Alpha Retirement: The free alpha endpoints for Optimus and Quasar are now retired. API requests will return a 404 and no automatic redirects to prevent unexpected costs.

🔗 Quick Links

  • GPT-4.1
  • GPT-4.1 Mini
  • GPT-4.1 Nano
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