OpenRouter Profile picture
Jul 24 5 tweets 2 min read Read on X
Introducing Classifiers, now in beta.

Tag inference in your workspace by task type, department, agent complexity, or whatever you care about. Then filter your logs or visualize your Activity.

Here's our internal model spread across task types 👇 Image
A classifier is four things: a taxonomy of up to 8 dimensions, a classification prompt, a model to apply it, and a sampling rate.

We include six presets you can use to start quickly. Classification runs async after each request, so it adds *zero* latency to your inference path. Image
Here's our own internal inference, grouped by task family and model.

Analysis and coding dominate, and you can see exactly which model is absorbing each one.

Invert the grouping to e.g. see where GPT 5.6 Sol is being used the most. Image
Image
Classifiers can work even with prompt logging disabled, and attach on each individual generation for full inspectability.

Create one in your workspace, or read the docs:
openrouter.ai/docs/guides/fe…Image
More info in our blog: openrouter.ai/blog/announcem…

• • •

Missing some Tweet in this thread? You can try to force a refresh
 

Keep Current with OpenRouter

OpenRouter Profile picture

Stay in touch and get notified when new unrolls are available from this author!

Read all threads

This Thread may be Removed Anytime!

PDF

Twitter may remove this content at anytime! Save it as PDF for later use!

Try unrolling a thread yourself!

how to unroll video
  1. Follow @ThreadReaderApp to mention us!

  2. From a Twitter thread mention us with a keyword "unroll"
@threadreaderapp unroll

Practice here first or read more on our help page!

More from @OpenRouter

Jul 25
The new Discover page: a new way to explore AI models

Opus 5 taking the overall lead, GPT 5.6 Sol on coding, + a growing list of routers to help you discover more! Image
See the top models by value per dollar, and the fastest models across the market.

Never miss a new version again using aliases, and now you can quickly see the newest free models! Image
OpenRouter has more than just LLMs - explore all the top image, video, and audio models in one place, with easy visual comparisons Image
Read 4 tweets
Jun 13
Introducing the Fusion API, the smartest compound model in the market.

Fusion achieves Fable-level intelligence at half the price.

How it works 👇 Image
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
By testing different combinations of models, we found that roughly three quarters of the lift that Fusion provides comes from synthesis, and one quarter from diversity. Image
Read 11 tweets
May 2
Introducing Response Caching: save tons of money and time on tests and agent retries.

Blog post:

Available for free. Learn more 👇 openrouter.ai/announcements/…Image
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.
A typical uncached request to Gemini 2.5 Flash takes about 1.3 seconds, Kimi K2.6 about 4.6 seconds, GPT-5.5 around 9.1 seconds.

Cache hits return in 80 to 300ms. The lookup itself averages 4ms.
Read 8 tweets
Apr 24
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 👇
Supports custom banners, plus many tool display styles: Image
The input field can be customized as well, to match Codex's style or Claude Code / Pi's style.

Or you can describe your own look! Image
Read 8 tweets
Dec 19, 2025
You can now use Claude Code with OpenRouter 🎊

Code with over 320 LLMs, including 39 free ones! Image
Here's a guide to getting set up: openrouter.ai/docs/guides/gu…
You can also now use any model on OpenRouter with Anthropic's API shapes and types.

Your code should look the way you want it to!
Read 4 tweets
Dec 4, 2025
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.Image
@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 👇)
Our dataset: anonymized request-level metadata from OpenRouter, including classifications.

We used this to study behavior at scale without reading any prompts or completions directly.
Read 21 tweets

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3/month or $30/year) and get exclusive features!

Become Premium

Don't want to be a Premium member but still want to support us?

Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal

Or Donate anonymously using crypto!

Ethereum

0xfe58350B80634f60Fa6Dc149a72b4DFbc17D341E copy

Bitcoin

3ATGMxNzCUFzxpMCHL5sWSt4DVtS8UqXpi copy

Thank you for your support!

Follow Us!

:(