openrouter fusion - capabilities similar to Anthropic Fable

Openrouter Fusion

Openrouter announced openrouter/fusion, a drop-in model alias that they touted can be as good as Anthropic Fable. So, I thought I will give it a try and here are my observations. But before that, here’s how it works (as described by OpenRouter):

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

Fusion achieves Fable-level intelligence on deep research tasks at half the price.

A panel of configurable models analyzes your prompt in parallel when the judge model thinks it’s needed, letting you build your own LLM councils to:

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Check Price and Token Limits in ZapGPT with OpenAI Provider

ZapGPT is a CLI and API tool to interact with LLMs like OpenAI, Groq, Claude, Perplexity, and more. If you’re using the OpenAI provider, you can easily check the price per token for each supported model — critical info if you’re optimizing for cost or want to dynamically switch models based on available context or budget.

Also, you can use the OpeNRouter provider to check the length of context if you are using some huge context like a big file as input :).