The dataset viewer is not available for this split.
Error code: StreamingRowsError
Exception: CastError
Message: Couldn't cast
timestamp: string
git_commit: string
git_dirty: bool
config_sha256: string
fixture_sha256: string
model: string
backend: string
quant: string
decoding: string
server_tier: string
mcp_server_version: string
seed: int64
python_version: string
platform_info: string
cpu_model: string
cpu_count: int64
gpu: struct<name: string, driver_version: string, cuda_version: string, vram_total_mb: int64, torch_cuda_ (... 46 chars omitted)
child 0, name: string
child 1, driver_version: string
child 2, cuda_version: string
child 3, vram_total_mb: int64
child 4, torch_cuda_available: null
child 5, torch_cuda_device_name: null
rho: double
n_pairs: int64
table: list<item: struct<model: string, quant: string, baseline_quant: string, delta_svr_bfcl: double, delt (... 19 chars omitted)
child 0, item: struct<model: string, quant: string, baseline_quant: string, delta_svr_bfcl: double, delta_svr_mcp: (... 7 chars omitted)
child 0, model: string
child 1, quant: string
child 2, baseline_quant: string
child 3, delta_svr_bfcl: double
child 4, delta_svr_mcp: double
to
{'rho': Value('float64'), 'n_pairs': Value('int64'), 'table': List({'model': Value('string'), 'quant': Value('string'), 'baseline_quant': Value('string'), 'delta_svr_bfcl': Value('float64'), 'delta_svr_mcp': Value('float64')})}
because column names don't match
Traceback: Traceback (most recent call last):
File "/src/services/worker/src/worker/utils.py", line 147, in get_rows_or_raise
return get_rows(
dataset=dataset,
...<4 lines>...
column_names=column_names,
)
File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
return func(*args, **kwargs)
File "/src/services/worker/src/worker/utils.py", line 127, in get_rows
rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
File "/src/services/worker/src/worker/utils.py", line 478, in safe_iter
yield from ds.decode(False) if ds.features else ds
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2818, in __iter__
for key, example in ex_iterable:
^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2355, in __iter__
for key, pa_table in self._iter_arrow():
~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2380, in _iter_arrow
for key, pa_table in self.ex_iterable._iter_arrow():
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 536, in _iter_arrow
for key, pa_table in iterator:
^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 419, in _iter_arrow
for key, pa_table in self.generate_tables_fn(**gen_kwags):
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
self._cast_table(pa_table, json_field_paths=json_field_paths),
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
pa_table = table_cast(pa_table, self.info.features.arrow_schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2369, in table_cast
return cast_table_to_schema(table, schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2297, in cast_table_to_schema
raise CastError(
...<3 lines>...
)
datasets.table.CastError: Couldn't cast
timestamp: string
git_commit: string
git_dirty: bool
config_sha256: string
fixture_sha256: string
model: string
backend: string
quant: string
decoding: string
server_tier: string
mcp_server_version: string
seed: int64
python_version: string
platform_info: string
cpu_model: string
cpu_count: int64
gpu: struct<name: string, driver_version: string, cuda_version: string, vram_total_mb: int64, torch_cuda_ (... 46 chars omitted)
child 0, name: string
child 1, driver_version: string
child 2, cuda_version: string
child 3, vram_total_mb: int64
child 4, torch_cuda_available: null
child 5, torch_cuda_device_name: null
rho: double
n_pairs: int64
table: list<item: struct<model: string, quant: string, baseline_quant: string, delta_svr_bfcl: double, delt (... 19 chars omitted)
child 0, item: struct<model: string, quant: string, baseline_quant: string, delta_svr_bfcl: double, delta_svr_mcp: (... 7 chars omitted)
child 0, model: string
child 1, quant: string
child 2, baseline_quant: string
child 3, delta_svr_bfcl: double
child 4, delta_svr_mcp: double
to
{'rho': Value('float64'), 'n_pairs': Value('int64'), 'table': List({'model': Value('string'), 'quant': Value('string'), 'baseline_quant': Value('string'), 'delta_svr_bfcl': Value('float64'), 'delta_svr_mcp': Value('float64')})}
because column names don't matchNeed help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
QuantMCP Results
Real benchmark results for the
QuantMCP benchmark, measuring
how quantization degrades LLM function-calling reliability against real,
unmodified Model Context Protocol server
tool schemas — and whether that degradation matches what
QuantCall
already measured on curated BFCL/ToolACE schemas. Every row comes from an
actual quantmcp run execution against a real, sandboxed MCP server — no
fabricated or hand-edited numbers.
Headline finding: Cross-Benchmark Consistency (CBC)
CBC (Spearman rho) = -0.755 (n=8 model×quant pairs, 3 model families) —
see data/cbc.json.
QuantCall's BFCL-measured quantization degradation does not reliably
carry over to real MCP schemas: the correlation is negative (degradation
directions often flip), and it got more negative, not less, as more data
was added. With 2 model families (Qwen3-0.6B, Llama-3.2-1B) the estimate
was -0.551 (n=6) — itself the product of three increasingly-averaged
computations that ranged -0.824 to -0.265 before stabilizing. Adding
Qwen3-1.7B as a 3rd family (a real within-family size contrast against
Qwen3-0.6B) moved it to -0.755 (n=8): the sign held, the magnitude
strengthened. See
docs/RUN_REAL.md
in the GitHub repo for the full convergence table and honesty caveats —
n=8 is still far too few for a rigorous p-value on a Spearman correlation.
Files
| File | Grain | Description |
|---|---|---|
data/raw_results/**/*.result.json + *.manifest.json |
one pair per real run | Every real run this project has produced (96 result files across 3 model families × 4 server tiers, with varying quant/repeat coverage per family — Qwen3-0.6B and Llama-3.2-1B at 4 quant levels with 3 independent repeats on tiers U1-U3, Qwen3-1.7B at 3 quant levels, single run, no fp16 (its bf16 weights don't fit a 4GB card at a usable context length — see docs/RUN_REAL.md)), each with a full manifest (git SHA, config/fixture hashes, hardware fingerprint). The model field is a portable ~/models/... path, not a specific machine's absolute path. Since Phase 7, each file also carries a instances array (one entry per task instance, tagged with the tool it targeted) enabling the per-tool SCI regression below. |
data/mcp_runs.csv |
one row per real run | Flattened, path-sanitized view of every raw_results file |
data/mcp_tier_breakdown.csv |
one row per server tier | Mean SVR-MCP/TSR/η per tier, annotated with that tier's real Schema Complexity Index (SCI) |
data/cbc.json |
one row per (model, quant) pair | Cross-Benchmark Consistency deltas against QuantCall's published BFCL numbers, plus the Spearman rho itself |
data/sci_regression.json |
one row per live tool | Per-tool Schema Complexity Index (SCI) paired with its own Δ SVR-MCP (fp16 vs. Q4_K_M), plus an OLS slope and bootstrap 95% CI across all 38 covered tools — the statistically-powered version of the SCI-vs-degradation question that mcp_tier_breakdown.csv's 4-tier view alone can't answer |
Schema: data/mcp_runs.csv
| Column | Type | Description |
|---|---|---|
model |
string | Sanitized model name (local GGUF paths stripped to a canonical name — see report/published.py::sanitize_model_name in the GitHub repo) |
quant |
string | Quantization level: fp16, Q8_0, Q5_K_M, Q4_K_M (Qwen3-1.7B: Q8_0/Q5_K_M/Q4_K_M only) |
tier |
string | MCP server tier: filesystem, git, sqlite, or memory |
n |
int | Number of task instances evaluated |
svr_mcp |
float | Schema-Validity Rate against the real, live tool schema (SVR-MCP, spec §4.1) |
tsr |
float | Task Success Rate — the call was schema-valid and produced the correct outcome (spec §4.2) |
vram_gb |
float | Peak VRAM usage in GB for this run |
eta |
float | Reliability-per-VRAM: (0.5*svr_mcp + 0.5*tsr) / vram_gb |
pareto_optimal |
bool | Whether this (model, quant, tier) config sits on the reliability-vs-VRAM Pareto frontier |
Schema: data/cbc.json
{
"rho": -0.755,
"n_pairs": 8,
"table": [
{"model": "...", "quant": "...", "baseline_quant": "...", "delta_svr_bfcl": ..., "delta_svr_mcp": ...}
]
}
delta_svr_bfcl is QuantCall's published BFCL SVR delta vs. that model's
own baseline quant (fp16 for every family except Qwen3-1.7B, which uses
Q8_0 — see baseline_quant per row); delta_svr_mcp is this project's
equivalent delta on real MCP schemas (pooled across all four server tiers,
weighted by task count).
Schema: data/sci_regression.json
{
"n": 38,
"slope": 0.045,
"intercept": ...,
"slope_ci": [-0.064, 0.170],
"points": [
{"tool": "...", "tier": "...", "sci": ..., "delta_svr": ..., "n_baseline": ..., "n_quant": ...}
]
}
slope/slope_ci describe the OLS fit of Δ SVR-MCP (fp16 minus Q4_K_M
pass rate, pooled across model families weighted by n) against each live
tool's own SCI. The 95% CI is a percentile bootstrap over the (SCI, Δ)
pairs, not a parametric estimate.
How to Submit
- Run the benchmark on your hardware following docs/RUN_REAL.md.
- Verify your
result.jsoncontains amanifestblock with a git SHA and fixture hash. - Open a PR on GitHub adding
your result file under
results/. - Run
quantmcp leaderboard results/ --output-dir leaderboard/and include the regenerated CSVs in your PR.
Links
- GitHub: https://github.com/Happynood/quant-mcp-bench
- Eval suite: https://huggingface.co/datasets/happynood/quantmcp-suite
- Leaderboard (Space): https://huggingface.co/spaces/happynood/quantmcp-leaderboard
- Sibling project (curated-schema quantization benchmark): https://github.com/Happynood/quant-toolcall-bench
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