# Chartography without tools (Chartography (no tools))

> Professional chart understanding across 100 specialized chart types with expert-set answer tolerances.

Canonical page: https://benchlm.ai/benchmarks/chartography

- Category: [Multimodal & Grounded](/multimodal-grounded)
- Last updated: September 27, 2026

## About Chartography (no tools)

- Year: 2026
- Tasks: 100 specialized chart types
- Format: Accuracy without tools
- Difficulty: Professional chart reasoning
- Paper: [Chartography](https://surgehq.ai/blog/chartography)

Section 8.12.1 reports a five-run max-effort average without tools using Anthropic's implementation of the official tasks and ranges.

Chartography (no tools) is currently displayed on BenchLM for reference, but it is excluded from the weighted scoring formula.

## Leaderboard (2 models)

| Rank | Model | Creator | Score |
|------|-------|---------|-------|
| 1 | [Claude Opus 5.5](/models/claude-opus-5-5) | Anthropic | 64.4% |
| 2 | [Claude Opus 5](/models/claude-opus-5) | Anthropic | 29.6% |

## FAQ

### What does Chartography (no tools) measure?

Professional chart understanding across 100 specialized chart types with expert-set answer tolerances.

### Which model scores highest on Chartography (no tools)?

Claude Opus 5.5 by Anthropic currently leads with a score of 64.4% on Chartography (no tools).

### How many models are evaluated on Chartography (no tools)?

2 AI models have been evaluated on Chartography (no tools) on BenchLM.

### Does Chartography (no tools) affect BenchLM's overall score?

Not directly. Chartography (no tools) is still displayed on BenchLM for reference, but it is excluded from the weighted scoring formula.

## Compare Top Models on Chartography (no tools)

- [Claude Opus 5.5 vs Claude Opus 5](/compare/claude-opus-5-vs-claude-opus-5-5)