LLM model right-sizing tool
Ranked 4 of 4 model fit calculators by recommenders
Shows which LLM models fit your computer's RAM, CPU and GPU, with scores for each. Critics say the model list is outdated and some hardware readings are wrong.
Shows which LLM models fit your computer's RAM, CPU and GPU, with scores for each. Critics say the model list is outdated and some hardware readings are wrong.
7 people gave an opinion
- recommend it
- 5
- criticize it
- 2
- approval share
- 71%
Recommended in 1 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: recommended
- April 2026: not recommended
- May 2026: not recommended
- June 2026: not recommended
- July 2026: not recommended
- August 2026: not recommended
- September 2026: not recommended
- October 2026: not recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 5 people recommend itNeeds 10 or more, not met.
- 2.5 recommenders for every criticNeeds 2 to 1 or better, met.
- Recommended in 1 of 13 monthsNeeds 4 or more, not met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Lists many models with scores
“The shared tool gives a list of a whole bunch of models, their respective scores”
Comment from 3 Mar 2026 in “Right-sizes LLM models to your system's RAM, CPU, and GPU” Useful for Ollama users
“It's useful for Ollama users, for example.”
Comment from 2 Mar 2026 in “Right-sizes LLM models to your system's RAM, CPU, and GPU” Visually fantastic interface
“this is visually fantastic, but while trying this out, it says I can't run Qwen 3.5 on my machine”
Comment from 2 Mar 2026 in “Right-sizes LLM models to your system's RAM, CPU, and GPU”
What people warn about
Each mark is one comment
Wrong hardware detection and fit
“this is visually fantastic, but while trying this out, it says I can't run Qwen 3.5 on my machine”
Comment from 2 Mar 2026 in “Right-sizes LLM models to your system's RAM, CPU, and GPU” “My 32 GB M1 Max has 8 GB of RAM and ~4 GB of VRAM according to this website.”
Comment from 2 Mar 2026 in “Right-sizes LLM models to your system's RAM, CPU, and GPU”
Other model fit calculators people recommend
The three most recommended other model fit calculators, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| llmfit | 20 | 2 | 91% | 6 | — | Approved |
| canirun.ai | 12 | 7 | 63% | 7 | — | — |
| Llmspeed | 8 | 9 | 47% | 1 | — | — |
| LLM model right-sizing toolThis page | 5 | 2 | 71% | 1 | — | — |
What people said
6 of the 7 comments that mention it, newest first. Each links to the original comment.
“The shared tool gives a list of a whole bunch of models, their respective scores”
“It's useful for Ollama users, for example.”
“this is visually fantastic, but while trying this out, it says I can't run Qwen 3.5 on my machine”
“My 32 GB M1 Max has 8 GB of RAM and ~4 GB of VRAM according to this website.”
“I don’t like the idea of running an executable for something that can perfectly be done as a website.”
“the models seem pretty outdated - it's recommending things like qwen 2.5 and starcoder 2 as perfect matches”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.