calaminevsxlrd
How 10 AI models weigh calamine against xlrd on the 1 buying question where both came up.
- calamine
- 13%of answers named it
- xlrd
- 98%of answers named it
- Placed higher
- 1–37times calamine vs xlrd, over 38 model rankings that listed either
- Models leaning
- 0–10toward calamine vs xlrd
Which models prefer which
Share of each model's answers that named each product, and how often its ranking put one above the other (a product listed beats one left off) · On the 1 shared question, every wording
| Model | calamine | xlrd | Placed higher | Leans |
|---|---|---|---|---|
| Claude Haiku 5.5 | 13% | 100% | 0–4 | xlrd |
| GPT-6 Luna | 25% | 88% | 1–2 | xlrd |
| Gemini 4 Argon | 13% | 100% | 0–4 | xlrd |
| Qwen 3.8 Flash | 25% | 88% | 0–3 | xlrd |
| DeepSeek V4 Pro | 13% | 100% | 0–4 | xlrd |
| GLM-5.3 | 0% | 100% | 0–4 | xlrd |
| Kimi K3 | 25% | 100% | 0–4 | xlrd |
| MiniMax M3 | 0% | 100% | 0–4 | xlrd |
| Mistral Large 4 | 13% | 100% | 0–4 | xlrd |
| Nemotron 3 Ultra | 0% | 100% | 0–4 | xlrd |
What the models say about calamine
One reason per model, from the shared questions
- Claude Haiku 5.5
Very fast Rust-based reader for xlsx, xls and ods files.
- GPT-6 Luna
Fast Rust-backed reader supporting several Excel formats, including .xlsb.
- Qwen 3.8 Flash
Rust-backed reader, dramatically faster than openpyxl/xlrd.
- DeepSeek V4 Pro
Extremely fast, lightweight Excel reader binding Rust's Calamine engine.
- Kimi K3
Very fast Rust-backed reader for xlsx/xls/ods, great for large messy files.
What the models say about xlrd
One reason per model, from the shared questions
- Claude Haiku 5.5
Classic reader for legacy xls files; reading xlsx support was removed.
- GPT-6 Luna
A lightweight reader for older .xls files; limited to reading.
- Gemini 4 Argon
The reliable standard for extracting data from legacy xls spreadsheets.
- Qwen 3.8 Flash
Classic reader, still needed for legacy .xls files.
- DeepSeek V4 Pro
Classic .xls reader; still essential for legacy Excel 97-2003 files.
- GLM-5.3
Handles legacy xls files well.
- Kimi K3
Still the go-to for legacy .xls files, read-only but reliable.
- MiniMax M3
Classic reader for legacy .xls files, still widely used.
- Mistral Large 4
Still useful for reading legacy .xls files, though .xlsx support was removed.
- Nemotron 3 Ultra
Classic for reading legacy .xls files only
Tracked since October 25, 2026. Each time the panel answers these questions again, both shares are added here.
Question by question
Share of all answers that named each, every wording pooled, with its place among every product named · Both-named questions first
| Question | calamine | xlrd |
|---|---|---|
| Best Python libraries for reading and editing Excel files | 13% #15 | 98% #4 |