File size: 6,811 Bytes
35205e8
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
from __future__ import annotations

from dataclasses import dataclass
from typing import Iterable


ALL_REASONING_EFFORTS = ("none", "minimal", "low", "medium", "high", "xhigh")
DEFAULT_REASONING_EFFORTS = frozenset(ALL_REASONING_EFFORTS)


@dataclass(frozen=True)
class ModelSpec:
    public_id: str
    upstream_id: str
    aliases: tuple[str, ...]
    allowed_efforts: frozenset[str]
    variant_efforts: tuple[str, ...]
    uses_codex_instructions: bool = False


_MODEL_SPECS = (
    ModelSpec(
        public_id="gpt-5",
        upstream_id="gpt-5",
        aliases=("gpt5", "gpt-5-latest"),
        allowed_efforts=DEFAULT_REASONING_EFFORTS,
        variant_efforts=("high", "medium", "low", "minimal"),
    ),
    ModelSpec(
        public_id="gpt-5.1",
        upstream_id="gpt-5.1",
        aliases=(),
        allowed_efforts=frozenset(("low", "medium", "high")),
        variant_efforts=("high", "medium", "low"),
    ),
    ModelSpec(
        public_id="gpt-5.2",
        upstream_id="gpt-5.2",
        aliases=("gpt5.2", "gpt-5.2-latest"),
        allowed_efforts=frozenset(("low", "medium", "high", "xhigh")),
        variant_efforts=("xhigh", "high", "medium", "low"),
    ),
    ModelSpec(
        public_id="gpt-5.4",
        upstream_id="gpt-5.4",
        aliases=("gpt5.4", "gpt-5.4-latest"),
        allowed_efforts=frozenset(("none", "low", "medium", "high", "xhigh")),
        variant_efforts=("xhigh", "high", "medium", "low", "none"),
    ),
    ModelSpec(
        public_id="gpt-5.5",
        upstream_id="gpt-5.5",
        aliases=("gpt5.5", "gpt-5.5-latest"),
        allowed_efforts=frozenset(("none", "low", "medium", "high", "xhigh")),
        variant_efforts=("xhigh", "high", "medium", "low", "none"),
    ),
    ModelSpec(
        public_id="gpt-5.4-mini",
        upstream_id="gpt-5.4-mini",
        aliases=("gpt5.4-mini", "gpt-5.4-mini-latest"),
        allowed_efforts=frozenset(("low", "medium", "high", "xhigh")),
        variant_efforts=("xhigh", "high", "medium", "low"),
    ),
    ModelSpec(
        public_id="gpt-5.3-codex",
        upstream_id="gpt-5.3-codex",
        aliases=("gpt5.3-codex", "gpt-5.3-codex-latest"),
        allowed_efforts=frozenset(("low", "medium", "high", "xhigh")),
        variant_efforts=("xhigh", "high", "medium", "low"),
        uses_codex_instructions=True,
    ),
    ModelSpec(
        public_id="gpt-5.3-codex-spark",
        upstream_id="gpt-5.3-codex-spark",
        aliases=("gpt5.3-codex-spark", "gpt-5.3-codex-spark-latest"),
        allowed_efforts=frozenset(("low", "medium", "high", "xhigh")),
        variant_efforts=("xhigh", "high", "medium", "low"),
        uses_codex_instructions=True,
    ),
    ModelSpec(
        public_id="gpt-5-codex",
        upstream_id="gpt-5-codex",
        aliases=("gpt5-codex", "gpt-5-codex-latest"),
        allowed_efforts=DEFAULT_REASONING_EFFORTS,
        variant_efforts=("high", "medium", "low"),
        uses_codex_instructions=True,
    ),
    ModelSpec(
        public_id="gpt-5.2-codex",
        upstream_id="gpt-5.2-codex",
        aliases=("gpt5.2-codex", "gpt-5.2-codex-latest"),
        allowed_efforts=frozenset(("low", "medium", "high", "xhigh")),
        variant_efforts=("xhigh", "high", "medium", "low"),
        uses_codex_instructions=True,
    ),
    ModelSpec(
        public_id="gpt-5.1-codex",
        upstream_id="gpt-5.1-codex",
        aliases=(),
        allowed_efforts=frozenset(("low", "medium", "high")),
        variant_efforts=("high", "medium", "low"),
        uses_codex_instructions=True,
    ),
    ModelSpec(
        public_id="gpt-5.1-codex-max",
        upstream_id="gpt-5.1-codex-max",
        aliases=(),
        allowed_efforts=frozenset(("low", "medium", "high", "xhigh")),
        variant_efforts=("xhigh", "high", "medium", "low"),
        uses_codex_instructions=True,
    ),
    ModelSpec(
        public_id="gpt-5.1-codex-mini",
        upstream_id="gpt-5.1-codex-mini",
        aliases=(),
        allowed_efforts=frozenset(("low", "medium", "high")),
        variant_efforts=(),
        uses_codex_instructions=True,
    ),
    ModelSpec(
        public_id="codex-mini",
        upstream_id="codex-mini-latest",
        aliases=("codex", "codex-mini-latest"),
        allowed_efforts=DEFAULT_REASONING_EFFORTS,
        variant_efforts=(),
        uses_codex_instructions=True,
    ),
)

_SPECS_BY_UPSTREAM = {spec.upstream_id: spec for spec in _MODEL_SPECS}
_ALIASES = {}
for _spec in _MODEL_SPECS:
    _ALIASES[_spec.public_id] = _spec.upstream_id
    for _alias in _spec.aliases:
        _ALIASES[_alias] = _spec.upstream_id


def _strip_model_name(model: str | None) -> tuple[str, str | None]:
    if not isinstance(model, str):
        return "", None
    value = model.strip().lower()
    if not value:
        return "", None
    if ":" in value:
        base, maybe_effort = value.rsplit(":", 1)
        if maybe_effort in DEFAULT_REASONING_EFFORTS:
            return base, maybe_effort
    for separator in ("-", "_"):
        for effort in ALL_REASONING_EFFORTS:
            suffix = f"{separator}{effort}"
            if value.endswith(suffix):
                return value[: -len(suffix)], effort
    return value, None


def model_spec_for_name(model: str | None) -> ModelSpec | None:
    base, _ = _strip_model_name(model)
    upstream_id = _ALIASES.get(base)
    if not upstream_id:
        return None
    return _SPECS_BY_UPSTREAM.get(upstream_id)


def normalize_model_name(model: str | None, debug_model: str | None = None) -> str:
    if isinstance(debug_model, str) and debug_model.strip():
        return debug_model.strip()
    spec = model_spec_for_name(model)
    if spec is not None:
        return spec.upstream_id
    base, _ = _strip_model_name(model)
    return base or "gpt-5.4"


def uses_codex_instructions(model: str | None) -> bool:
    spec = model_spec_for_name(model)
    if spec is not None:
        return spec.uses_codex_instructions
    return "codex" in ((model or "").strip().lower())


def allowed_efforts_for_model(model: str | None) -> frozenset[str]:
    spec = model_spec_for_name(model)
    if spec is not None:
        return spec.allowed_efforts
    return DEFAULT_REASONING_EFFORTS


def extract_reasoning_from_model_name(model: str | None) -> dict[str, str] | None:
    _, effort = _strip_model_name(model)
    if not effort:
        return None
    return {"effort": effort}


def list_public_models(expose_reasoning_models: bool = False) -> list[str]:
    model_ids: list[str] = []
    for spec in _MODEL_SPECS:
        model_ids.append(spec.public_id)
        if expose_reasoning_models:
            model_ids.extend(f"{spec.public_id}-{effort}" for effort in spec.variant_efforts)
    return model_ids


def iter_public_models() -> Iterable[ModelSpec]:
    return _MODEL_SPECS