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# The best model scored 74.5% on GAIA in September 2025, 17.5 points short of the 92% human baseline
- URL: https://aiadoption.org/data/gaia-ai-assistant-benchmark/
- Published: 2026-10-19T16:06:12.000Z
- Updated: 2026-10-21T06:00:54.000Z
- Description: The best accuracy on GAIA, a test of multistep assistant tasks that need browsing, files and reasoning, rose from 30.3% in January 2025 to 74.5% in September 2025. People score 92%.
- Author: Manu
- Tags: Data, AI Benchmarks, AI Agents, #chart, #ai-index-2026, #hub-benchmarks, #topic-ai-agents

74.5%

▲ 44.2 pts since Jan 2025

GAIA accuracy of Claude Sonnet 4.5, September 2025; human baseline 92%

20252025

## What the chart shows

GAIA tests general AI assistants on multistep, real-world questions that typically need web browsing, file handling and reasoning across sources. The best score rose from 30.3% for DeepSeek R1 (January 2025) to 74.5% for Claude Sonnet 4.5 (September 2025).

In between, Claude 3.7 Sonnet (February) reached 64.2%, Claude Opus 4 (May) 64.8% and Claude Opus 4.1 (August) 68.5%. The human baseline is 92%, so the leading model remains 17.5 percentage points behind.

## Key numbers

| Measure                            | Value |
| ---------------------------------- | ----- |
| DeepSeek R1, Jan 2025              | 30.3% |
| Claude 3.7 Sonnet (high), Feb 2025 | 64.2% |
| Claude Opus 4 (high), May 2025     | 64.8% |
| Claude Opus 4.1 (high), Aug 2025   | 68.5% |
| Claude Sonnet 4.5, Sep 2025        | 74.5% |
| Human baseline                     | 92%   |

## How to read it

- Each bar is the best model released by that month on the GAIA leaderboard the AI Index cites (Princeton’s HAL); months with no new best are left out.
- The report text gives about 20% for January 2025; the data shows 30.3% (DeepSeek R1), which we use.

**Source:** [GAIA Leaderboard](https://aiadoption.org/sources/#gaia-hal), 2026, via the AI Index Report 2026 (Stanford HAI), figure 2.6.1: *GAIA: accuracy*. Chart and text by AI Adoption.  
Numbers checked against the published data on 20 October 2026.  
[Download the data (CSV)](https://charts.aiadoption.org/ai-index/csv/gaia-ai-assistant-benchmark.csv?ref=aiadoption.org) · [Cite this chart](#source)