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AIMODELRACE
Business

Best agent for taxes & personal finance

Understanding tax situations, organising documents and checking returns.

Leader

Photo finish

GPT-6 Astra

Index

90.8

Lead

+0.8

% ahead

0.9%

over Claude Opus 5.5. Too close to call: choose on price, speed or the tools you already use.

Full ranking

Task index, 0 to 100. Bars are scaled to the field, so small gaps look small.

  1. 1
    GPT-6 Astra
    90.8

    Strongest numeric reasoning.

  2. 2
    Claude Opus 5.5
    −0.890

    Careful with caveats and uncertainty.

  3. 3
    GPT-6.1 Sol
    −2.888

    Clear explanations at lower cost.

  4. 4
    TurboTax AI features
    −6.884

    Guided filing with AI help (US).

  5. 5
    Gemini 4 Argon
    −6.884

    Great at reading scanned forms.

Key takeaways
  • 1Great for explaining rules and organising paperwork; not a substitute for a professional.
  • 2GPT-6 Astra and Opus 5.5 lead on accuracy with numbers and rules.
  • 3Never let an agent file or pay without your review.

Recommended setup

Use a frontier model to explain, organise and double-check; file through established tax software or a professional.

Prompts that work

Tax situation check

I'm a {{residency}} taxpayer for tax year {{year}}. Here's my situation: {{details}}. Explain which forms and rules likely apply, what documents I need, common mistakes, and questions to ask a tax professional. Flag anything you're unsure about and cite official guidance.

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