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Best AI for… / accounting and finance

Best AI for accounting and bookkeeping

Day-to-day accounts, bookkeeping and tax questions.

Best overall

Claude Fable 5.1

Get it with Claude Max, $100 a month (for up to half your weekly allowance)

Top of 8 models for this task

Best for $25 a month or less

Gemini 3.8 Flash

Get it with Google AI Pro, $19.99 a month

2nd of 8 models for this task

Best free

Kimi K3

Get it with Kimi Free

4th of 8 models for this task

Based on the tests for accounting and finance. The picks follow a fixed rule using the charts below and each app's plans.

Already paying for one? See what each plan gives you here
App and planPriceBest model on it for thisPosition
ChatGPT FreefreeNo score yet
Its main model, GPT-5.6 Luna, is too new to score yet.
–
ChatGPT Go$8 a monthNo score yet
Its main model, GPT-5.6 Luna, is too new to score yet.
–
ChatGPT Plus$20 a monthGPT-6 Astra
Only in ChatGPT's Work mode and Codex, not normal chat
Its main model, GPT-5.6 Sol, is too new to score yet.
3rd of 8
ChatGPT Pro$100 a monthGPT-6 Astra
Called GPT-6 Pro in the app
3rd of 8
Claude FreefreeClaude Sonnet 56th of 8
Claude Pro$20 a monthClaude Sonnet 5
Its main model, Claude Opus 5.5, is too new to score yet.
6th of 8
Claude Max$100 a monthClaude Fable 5.1
For up to half your weekly allowance
Its main model, Claude Opus 5.5, is too new to score yet.
1st of 8
Gemini FreefreeGemini 3.6 Flash5th of 8
Google AI Plus$4.99 a monthGemini 3.6 Flash5th of 8
Google AI Pro$19.99 a monthGemini 3.8 Flash2nd of 8
Google AI Ultra$99.99 a monthGemini 3.8 Flash2nd of 8
Kimi FreefreeKimi K34th of 8
Kimi Moderato$19 a monthKimi K34th of 8

How the models compare

Every model we could score for accounting and bookkeeping, combining the tests below.

Overall for accounting and bookkeeping

Position on a combined score from 2 tests. The longer the bar, the further ahead · Higher is better

On the tests we have, Claude Fable 5.1 comes out on top, followed by Gemini 3.8 Flash and GPT-6 Astra.

Claude Fable 5.1 · Anthropic1st
Gemini 3.8 Flash · Google DeepMind2nd
GPT-6 Astra · OpenAI3rd
Kimi K3 · Moonshot AI4th
Gemini 3.6 Flash · Google DeepMind5th
Claude Sonnet 5 · Anthropic6th
DeepSeek V4 Pro · DeepSeek7th
Gemini 3.1 Pro · Google DeepMind8th

The evidence

Professional tasks in banking, consulting and law

Tests a related skill · Tasks written by experienced professionals that take a person about two hours, using documents, spreadsheets, email and slides. · Higher is better

Claude Fable 5.1 leads, followed by GPT-6 Astra and Gemini 3.8 Flash.

Claude Fable 5.1 · Anthropic69%
GPT-6 Astra · OpenAI65%
Gemini 3.8 Flash · Google DeepMind64%
Claude Sonnet 5 · Anthropic55%
Kimi K3 · Moonshot AI51%
DeepSeek V4 Pro · DeepSeek47%
Gemini 3.6 Flash · Google DeepMind47%
Gemini 3.1 Pro · Google DeepMind35%
Source: Mercor via Epoch AI · CC BY 4.0

People's votes on business and finance questions

Tests a related skill · People compared two anonymous answers to business, management and finance questions. · Higher is better

Claude Opus 5.5 and Claude Fable 5.1 are neck and neck at the top, followed by Gemini 3.8 Flash and Kimi K3; Claude Fable 5.1 costs about 3 times as much.

Claude Opus 5.5 · Anthropic1st
Claude Fable 5.1 · Anthropic2nd
Gemini 3.8 Flash · Google DeepMind3rd
Kimi K3 · Moonshot AI4th
Gemini 3.6 Flash · Google DeepMind5th
DeepSeek V4.1 Flash · DeepSeek6th
Gemini 3.1 Pro · Google DeepMind7th
GPT-5.6 Sol · OpenAI8th
GPT-6 Astra · OpenAI9th
DeepSeek V4 Pro · DeepSeek10th
GPT-5.6 Luna · OpenAI11th
Claude Sonnet 5 · Anthropic12th
Gemini 3.5 Flash-Lite · Google DeepMind13th
Claude Haiku 4.5 · Anthropic14th
Source: LMArena · votes as of 25 Sept 2026

If you build with it

What the makers charge developers who use the models directly. Using an app? The plans above are what you pay.

Cost per 1,000 typical requests

List price, about 1,500 words in and 500 out per request · Lower is better

GPT-6 Luna is cheapest, followed by DeepSeek V4.1 Flash and GPT-5.6 Luna.

GPT-6 Luna · OpenAI$0.55
DeepSeek V4.1 Flash · DeepSeek$0.72
GPT-5.6 Luna · OpenAI$1.24
DeepSeek V4 Pro · DeepSeek$1.48
Gemini 3.5 Flash-Lite · Google DeepMind$2.35
Gemini 3.8 Flash · Google DeepMind$4.13
Gemini 3.6 Flash · Google DeepMind$4.13
Claude Haiku 4.5 · Anthropic$5.50
Claude Sonnet 5 · Anthropic$11
GPT-6 Sol · OpenAI$11
Gemini 3.1 Pro · Google DeepMind$12
Kimi K3 · Moonshot AI$17
GPT-5.6 Sol · OpenAI$22
Claude Opus 5.5 · Anthropic$22
GPT-6 Astra · OpenAI$55
Claude Fable 5.1 · Anthropic$55
Source: models.dev · MIT
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