164-task model pass@1 comparison

Two 14B coding models took the same 164 code-completion tasks through the same harness, with one greedy try at each task.

Measured model comparison28 August 2026

How many of the 164 tasks each model passed on its first try

Base Qwen 14B passed 141 of the 164 tasks and Flywheel 14B passed 136, a gap of 3.05 points that is not statistically significant.

Share of tasks passed on the first try. The scale starts at zero.

Base Qwen 14B

141 of 164 tasks passed

85.98%

Flywheel 14B

136 of 164 tasks passed

82.93%

Where the two models split

Each square is one task. Its left half is filled when Base Qwen 14B passed it, its right half when Flywheel 14B passed it.

The 164 tasks by paired outcome164 squares, one per task, in this order: 127 both models passed; 14 only Base Qwen 14B passed; 9 only Flywheel 14B passed; 14 both models failed.The 164 tasks by paired outcome164 squares, one per task, in this order: 127 both models passed; 14 only Base Qwen 14B passed; 9 only Flywheel 14B passed; 14 both models failed.
  • 127 both models passed
  • 14 only Base Qwen 14B passed
  • 9 only Flywheel 14B passed
  • 14 both models failed

A gap this small can be chance: the two models split on 23 of the 164 tasks, 14 for Base Qwen 14B and 9 for Flywheel 14B. It covers one 164-task code-completion suite and does not measure agentic tool use or general coding quality.

How we know: the comparison
Does not prove
This result does not show a statistically significant improvement, general coding superiority, agentic reliability, production readiness, or independent validation.
Limits
The base artifact digest is not pinned in this result file. The result covers one 164-task code-completion suite and does not measure agentic tool use. Hardware, runtime version, latency, cost, and resource use are not recorded in this result file.
Method
Same 164 code-completion tasks, same harness, pass@1, greedy decoding, temperature 0. Each bar is the share of the 164 tasks a model passed on its first try, on a scale that starts at zero.
Test
Flywheel 14B was 3.05 percentage points lower. McNemar test on the paired outcomes: continuity-corrected χ²=0.696, p=0.404, significant at 0.05: no.
Paired outcomes
9 gains; 14 regressions; 127 both pass; 14 both fail
Tally
Text equivalent for both model results.
Model roleModel referencePassed / nPass@1
Base Qwen 14Bollama:qwen2.5-coder:14b-instruct-q4_K_M141/16485.98%
Flywheel 14Bollama:flywheel-local-coder-14b136/16482.93%
Source

Public tracked result

Source SHA-256: 587da8ea4a04d5e520cc5ed4a83efb6c070fab6c587e0e58b00053cfdee5ed9d

Measured result, captured 28 August 2026