GLM 5.2 vs GPT-5.6 Solfor coding

```python
import re

def parse_duration(s):
    """
    Convert a duration string like '1h30m', '45s', '2h', '90m', '1h2m3s' into total seconds.
    
    The string must consist of one or more components, each being a non-negative integer
    followed by a unit 'h', 'm', or 's'. Units must appear in the order h, m, s (each at most once).
    Raises ValueError on any malformed input.
    """
    if not s:
        raise ValueError("Empty string")
    
    # Match all number+unit pairs
    pattern = re.compile(r'(\d+)([hms])')
    matches = patter…

```python
import re

_DURATION_PATTERN = re.compile(
    r"(?:(?P<hours>[0-9]+)h)?"
    r"(?:(?P<minutes>[0-9]+)m)?"
    r"(?:(?P<seconds>[0-9]+)s)?"
)


def parse_duration(s):
    if not isinstance(s, str) or not s:
        raise ValueError("Malformed duration")

    match = _DURATION_PATTERN.fullmatch(s)
    if not match:
        raise ValueError(f"Malformed duration: {s!r}")

    hours = int(match.group("hours") or 0)
    minutes = int(match.group("minutes") or 0)
    seconds = int(match.group("seconds") or 0)

    return hours * 3600 + minu…