We've added Fable 5, Anthropic's newest Claude model, to Rogo as an opt-in early access program.

Before making it available, we evaluated it on Big Finance Bench, our internal benchmark designed to measure performance on real-world, multi-step financial workflows. Across the benchmark, Fable 5 delivered the strongest results amongst the latest generation of Claude models.

Big Finance Benchmark Final Answer Performance

Fable 5 was approximately 11% higher on final answer quality, with the largest gains appearing on complex, document-heavy workflows that require reasoning across long contexts and large volumes of information.

The improvement does not come at the expense of efficiency. Fable 5 reached these results using approximately 8% fewer steps while maintaining comparable latency.

We're offering Fable 5 as an opt-in early access model while we continue monitoring quality, reliability, and cost in production environments. Data handling during early access differs from standard Rogo deployments, so please confirm the details with your account team before enabling access.

Interested in enabling Fable 5 for your firm? Reach out to your Rogo contact.