# Homebench – Benchmark local LLMs for speed, memory, and quality

> Source: <https://github.com/david-g-3654/homebench>
> Published: 2026-08-04 09:48:43+00:00

**Benchmark the local LLMs you already have — speed, memory, and quality — as a live terminal leaderboard.**

`homebench`

is a single-command TUI that discovers the models installed in your local runner (**Ollama**, **LM Studio**, **llama.cpp**, **vLLM**, or any **OpenAI-compatible** server), runs a curated quality suite, measures **tokens/sec**, **time-to-first-token**, and **memory footprint** on *your actual machine*, and renders a live comparison leaderboard.

```
pip install homebench
homebench
```

That's it. No config, no API keys, no cloud.

There are great tools for *one* half of this problem, but nothing local-first that does both:

(inside llama.cpp) measures`llama-bench`

**speed only**.measures`lm-evaluation-harness`

**quality** but has no polished laptop UX and isn't built around the model runners most people actually use locally.

`homebench`

fills the gap: **local-first, zero-config, UX-driven.** Clone-and-run, point it at the models you already pulled, and get an at-a-glance answer to *"which of my local models is actually good, and how fast is it on this laptop?"*

| Metric | How |
|---|---|
tok/s |
Output tokens ÷ generation time. Ollama reports server-side eval timing; OpenAI-compatible backends are timed client-side from the token stream. Excludes prompt processing and model load. |
TTFT |
Wall-clock time to the first streamed token (minus model-load time where the runner reports it). |
Memory |
Resident model size when the runner exposes it (Ollama `/api/ps` , LM Studio `/api/v0` ), plus a best-effort peak-RSS sample of the backend's processes. |
Quality |
31 deterministically-graded tasks across math, reasoning, factual recall, instruction-following/structured-output, extraction, and code understanding. Optional LLM-as-judge adds open-ended tasks (summaries, email, haiku, explanations). |

```
pip install homebench        # then run:  homebench
```

Prefer an isolated install? Use [pipx](https://pipx.pypa.io):

```
pipx install homebench
```

Or from source:

```
git clone https://github.com/david-g-3654/homebench
cd homebench
pip install .
```

Requires **Python 3.9+**.

```
homebench                        # fast default: 3 smallest models, quick suite (TUI)
homebench --all                  # benchmark every discovered model
homebench --full                 # run the full quality suite (not just the fast subset)
homebench --no-tui               # plain live renderer (great for piping / CI)
homebench -m llama3.2,qwen3:8b   # only these models
homebench --limit 3              # cap the number of models
homebench --provider lmstudio    # use LM Studio instead of auto-detect
homebench --provider llamacpp    # llama.cpp server (llama-server)
homebench --provider vllm        # vLLM
homebench --provider openai --host http://localhost:5000   # any OpenAI-compatible server
homebench --refresh-cache        # recompute instead of reusing cached responses
homebench --no-quality           # speed + memory only (fast)
homebench --no-speed             # quality only
homebench --judge qwen3:8b       # enable LLM-as-judge (adds open-ended tasks)
homebench --tasks mypack.yaml    # use a custom task pack instead of the built-in suite
homebench --add-tasks mypack.yaml  # add a pack on top of the built-in suite
homebench --label "before tuning"  # tag this run for later diffing
homebench --md results.md        # also export a Markdown report
homebench --json results.json    # also export raw JSON

homebench list                   # just list discovered models
homebench tasks                  # show the quality suite (add --tasks to preview a pack)
homebench history                # list past runs (saved automatically)
homebench diff                   # diff the two most recent runs
homebench diff 3 1               # diff run #3 (base) against run #1 (newer)
homebench throughput             # batch-throughput sweep (concurrency 1,2,4,8)
homebench throughput --concurrency 1,8,16 --provider vllm
homebench fit                    # which popular models fit YOUR hardware?
```

Run `homebench --help`

for the full flag list.

A real quick-suite run on an Apple M1 (16 GB), via Ollama:

```
                               Final leaderboard
┏━━━┳━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━┳━━━━━━━━━┳━━━━━━┳━━━━━━━┳━━━━━━━━┳━━━━━━━━┓
┃ # ┃ Model                ┃ Params ┃ Quality ┃ Pass ┃ tok/s ┃   TTFT ┃ Memory ┃
┡━━━╇━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━╇━━━━━━━━━╇━━━━━━╇━━━━━━━╇━━━━━━━━╇━━━━━━━━┩
│ 1 │ llama3.2:latest      │   3.2B │     75% │  6/8 │  16.8 │ 545 ms │ 2.4 GB │
│ 2 │ alibayram/smollm3    │   3.1B │     38% │  3/8 │  16.9 │ 829 ms │ 2.1 GB │
└───┴──────────────────────┴────────┴─────────┴──────┴───────┴────────┴────────┘
```

(Numbers are for *that* laptop at *that* moment — see [Limitations](#limitations).)

At least one local model runner must be reachable:

| Provider | `--provider` |
Default host | Host env var | Notes |
|---|---|---|---|---|
| Ollama | `ollama` |
`http://localhost:11434` |
`OLLAMA_HOST` |
Native API; reports model memory via `/api/ps` . |
| LM Studio | `lmstudio` |
`http://localhost:1234` |
`LMSTUDIO_HOST` |
Enriches metadata + memory via native `/api/v0` . |
| llama.cpp | `llamacpp` |
`http://localhost:8080` |
`LLAMACPP_HOST` |
`llama-server` , OpenAI-compatible. |
| vLLM | `vllm` |
`http://localhost:8000` |
`VLLM_HOST` |
Set `VLLM_API_KEY` if started with `--api-key` . |
| OpenAI-compatible | `openai` |
— | `OPENAI_BASE_URL` |
Any `/v1` server (Jan, LocalAI, TGI, …); pass `--host` . |

Auto-detection tries Ollama → LM Studio → llama.cpp → vLLM (the generic `openai`

provider is explicit-only). Force one with `--provider`

. Override host with `--host`

or the env var above.

The suite is small on purpose — enough tasks across categories to *separate* models, few enough that every model runs in a couple of minutes on a laptop. Each task is graded deterministically (exact numeric match, multiple-choice letter, substring, valid-JSON, regex). Temperature is 0 and a fixed seed is used for reproducibility. See `homebench tasks`

for the list.

The optional `--judge MODEL`

flag turns on an LLM-as-judge (any local model) that scores open-ended tasks 1–5 against a reference answer. It's a signal, not an oracle.

Benchmarking every model on the full suite takes a while on a laptop, so the defaults are tuned for a quick first look:

**3 smallest models** by default (smallest first, so results appear fast) —`--all`

for everything,`-m`

to choose.**A fast quality subset**(~8 tasks across all categories) —`--full`

for all 31.**Response caching**: quality runs use temperature 0 + a fixed seed, so responses are deterministic and cached under`~/.homebench`

. Re-running only regenerates*new*models/tasks (unchanged ones are re-graded from cache in milliseconds);`--refresh-cache`

forces recompute,`--no-cache`

disables it.

In practice this turns a first run from ~15–25 min (all models, full suite) into ~1–2 min, and a re-run into seconds. For a thorough pass (CI, final numbers) use `homebench --all --full`

.

Bring your own evals with a JSON or YAML pack — no Python required. `--tasks`

replaces the built-in suite; `--add-tasks`

appends to it. YAML needs the optional extra (`pip install "homebench[yaml]"`

); JSON works out of the box.

```
# mypack.yaml  —  homebench --tasks mypack.yaml
name: my-pack
tasks:
  - id: capital_japan
    category: factual
    prompt: "What is the capital of Japan? Answer with just the city name."
    grader: {type: contains_any, values: ["Tokyo"]}
    reference: Tokyo
  - id: add
    category: math
    prompt: "What is 12 + 30? End with the answer on its own line."
    grader: {type: exact_number, value: 42}
  - id: explain          # no grader -> open-ended, scored only with --judge
    category: open
    prompt: "Explain photosynthesis in one sentence."
    reference: "Plants convert sunlight, water, and CO2 into glucose and oxygen."
```

Grader `type`

values: `exact_number`

(`value`

, `tol`

), `multiple_choice`

(`value`

), `contains_any`

(`values`

), `regex`

(`pattern`

, `ignorecase`

), `valid_json`

(`keys`

), `valid_json_array`

(`length`

). Omit `grader`

for a judge-only task. Runnable examples live in [ examples/](/david-g-3654/homebench/blob/main/examples); preview any pack with

`homebench tasks --tasks mypack.yaml`

.Every run is saved automatically to `$HOMEBENCH_HOME/runs`

(default `~/.homebench/runs`

); disable with `--no-save`

, and tag runs with `--label`

.

```
homebench history            # table of past runs (newest first)
homebench diff               # previous run -> latest
homebench diff 3             # run #3 -> latest
homebench diff 3 1           # run #3 (base) -> run #1 (newer)
```

`diff`

compares models by name and shows per-model deltas in quality and throughput, plus which models were added or removed between runs — handy for "did that quantization / setting actually help?"

The main leaderboard measures **single-stream** tok/s. Servers that batch requests (vLLM, llama.cpp continuous batching, Ollama with `OLLAMA_NUM_PARALLEL>1`

) can do far more total work under concurrency — `homebench throughput`

measures that:

```
homebench throughput -m my-model --concurrency 1,2,4,8
```

It fires N requests at each concurrency level (N defaults to 3×concurrency) and reports **aggregate** tok/s (total output ÷ wall-clock), the speedup vs. concurrency 1, mean per-request rate, and latency (mean / p95):

```
             Batch throughput — my-model (vllm)
┏━━━━━━┳━━━━━━┳━━━━━━━━━━━┳━━━━━━━━━┳━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━┳━━━━━━━━┓
┃ Conc ┃ Reqs ┃ Agg tok/s ┃ Speedup ┃ Req tok/s ┃ Mean lat ┃ p95 lat ┃ Errors ┃
┡━━━━━━╇━━━━━━╇━━━━━━━━━━━╇━━━━━━━━━╇━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━╇━━━━━━━━┩
│    1 │    4 │      95.0 │   1.00× │      95.0 │   1.35 s │  1.4 s  │      0 │
│    4 │   12 │     320.0 │   3.37× │      82.0 │   1.56 s │  1.9 s  │      0 │
│    8 │   24 │     540.0 │   5.68× │      70.0 │   1.83 s │  2.6 s  │      0 │
└──────┴──────┴───────────┴─────────┴───────────┴──────────┴─────────┴────────┘
```

On a non-batching setup, aggregate throughput stays flat while latency climbs — which is itself a useful thing to see. Add `--json FILE`

to export.

Before benchmarking, `homebench fit`

captures your hardware (RAM, CPU, GPU/VRAM, Apple unified memory) and checks a **catalog of ~50 popular models** — SmolLM2, Qwen2.5, Llama 3.x, Gemma 2, Phi-3.5/4, Mistral/Mixtral, DeepSeek-R1, CodeLlama, Yi, Command-R, and more, from 135M up to 141B — against your memory budget, showing which fit and at what quantization:

```
homebench fit                    # what fits, at the best quant
homebench fit --all              # include models that don't fit
homebench fit --context 8192     # budget a larger KV cache
homebench fit --quant Q4_K_M     # evaluate a specific quant
homebench fit --vram 24          # what-if: "if I had a 24 GB GPU…"
homebench fit --catalog my.json  # add your own models to the catalog
```

Instead of the built-in catalog, pull the **currently most popular models straight from the HuggingFace Hub** — their parameter counts (from safetensors metadata) are sized against your hardware in real time:

```
homebench fit --online              # top 50 text-generation models by downloads
homebench fit --online --top 100    # cast a wider net
homebench fit --online --sort trending   # or: likes
homebench fit --online --refresh    # bypass the 1-day cache
```

Results are cached under `$HOMEBENCH_HOME`

(`~/.homebench`

), so repeat runs are fast and work offline; if the Hub is unreachable, `homebench`

falls back to the cache (or the built-in catalog).

The built-in catalog also ships each model's **Ollama tag** (`ollama pull …`

) and **HuggingFace repo** (which LM Studio and vLLM pull from). Add your own with a JSON catalog (see [ examples/models.example.json](/david-g-3654/homebench/blob/main/examples/models.example.json)): a list of

`{name, params_b, family?, ollama?, hf?}`

. Sizes are estimates (weights + KV cache + overhead), so treat "fits"/"tight" as guidance. Add `--json FILE`

to export the hardware profile and results.`homebench`

is a fast, local **first look** — not a rigorous benchmark of record. Keep these in mind:

**Quality is a signal, not a leaderboard of record.** The suite is small and English-only (8 tasks in the fast default, 31 with`--full`

); it's designed to*separate*your models, not to rank them authoritatively. For serious evals use[lm-evaluation-harness](https://github.com/EleutherAI/lm-evaluation-harness). The optional LLM-as-judge is noisy, especially with small local judges.**Speed is your-machine-at-that-moment.** tok/s and TTFT depend on current load, thermal state, and memory pressure — a busy laptop (or swapping when low on RAM) will read slower. Numbers are meaningful*relative*to each other on the same run, not as absolute model specs.**Memory is best-effort.** It uses the runner's resident size where exposed (Ollama`/api/ps`

, LM Studio`/api/v0`

) plus RSS sampling; on unified-memory Macs it's approximate, and client-timed for OpenAI-compatible backends.(weights + KV cache + overhead) — treat "fits/tight" as guidance, not a guarantee. HuggingFace param counts come from safetensors metadata, which is missing for GGUF-only or gated repos.`fit`

sizes are estimates**Throughput scaling only appears on batching servers**(vLLM, etc.); a single local model serializes requests.

```
git clone https://github.com/david-g-3654/homebench
cd homebench
python -m venv .venv && source .venv/bin/activate
pip install -e ".[dev]"
pytest -q
```

The codebase is small and layered: `providers/`

(pluggable backends), `quality/`

(tasks, graders, judge), `metrics/`

(memory sampling), `runner.py`

(orchestration), `report.py`

(export + tables), and `tui/`

+ `plainui.py`

(rendering). Adding a provider means subclassing `Provider`

(or `OpenAICompatibleProvider`

) and registering it; adding a task means appending to the suite in `quality/tasks.py`

with a reference that satisfies its grader (enforced by the tests).

Contributions welcome — new providers, task packs, and metrics especially.

- PyPI release
- HTML / shareable report export
- Per-run environment capture (OS, RAM, GPU) for comparable results
- Community task-pack sharing
- GitHub Action for automated benchmarking in CI

MIT
