Introducing the Fusion API, the smartest compound model in the market.

Fusion achieves Fable-level intelligence at half the price.

How it works 👇 We benchmarked Fusion on 100 hard research tasks and found:

1. Panels of models consistently outperform individual models
2. Beyond-frontier performance can be achieved with frontier panels
3. Panels of budget models can surpass frontier models at a much lower cost

Introducing Response Caching: save tons of money and time on tests and agent retries.

Blog post:

Available for free. Learn more 👇 openrouter.ai/announcements/… Add one header (`X-OpenRouter-Cache: true`) and identical requests come back in milliseconds with zero tokens billed.

The first call hits the provider as normal, but every identical call after that is free.

Introducing "create-agent-tui"

A skill for building your own agent harness + terminal UI (TUI). The skill walks you through 4 different ways of customizing the look, and supports dozens of optional features 👇

https://twitter.com/OpenRouter/status/2047348716923945017

Supports custom banners, plus many tool display styles:

You can now use Claude Code with OpenRouter 🎊

Code with over 320 LLMs, including 39 free ones! Here's a guide to getting set up: openrouter.ai/docs/guides/gu…

We collaborated with @a16z to publish the **State of AI** - an empirical report on how LLMs have been used on OpenRouter.

After analyzing more than 100 trillion tokens across hundreds of models and 3+ million users (excluding 3rd party) from the last year, we have a lot of insights to share. @AnjneyMidha @MaikaThoughts @xanderatallah @cclark One finding: we observe a Cinderella "Glass Slipper" effect for new models.

Early users a new LLM either churn quickly or become part of a foundational cohort, with much higher retention than others. They are early adopters who can "lead" the rest of the market (more details 👇)

Live now on OpenRouter!

INTELLECT-3 pushes the frontier forward by opening up how high quality models are trained. Weights, code, environments, and a detailed writeup are available to all.

https://twitter.com/primeintellect/status/1993895068290388134

Try it now on OpenRouter: openrouter.ai/prime-intellec…

🟣 New model family: Qwen3, by @Alibaba_Qwen

- available today from 8B to 235B, with many free variants!

- unique prompt-based toggle for chain-of-thought reasoning @Alibaba_Qwen 🚀The headliners:

• Qwen3-235B-A22B - MoE with rich reasoning and generation power: openrouter.ai/qwen/qwen3-235…

• Qwen3-30B-A3B - speed & cost-efficiency: openrouter.ai/qwen/qwen3-30b…

• Qwen3-32B - dense model: openrouter.ai/qwen/qwen3-32b

Stealth model reveal 👀

Many of you have been excited to know who made Quasar Alpha & Optimus Alpha, which both topped the charts during testing.

Today we can announce that they were early test versions of... OpenAI GPT-4.1 ⭐️

GPT-4.1 is now generally available with a 1M token context and cost-effective mini and nano variants:

- 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