Inconsistent model properties across providers for the same model

[bigfluffycookie]

For the same model in different providers some properties are inconsistent at times.

Some examples for Openai's model gpt-5.1:

models.dev/providers/302ai/models/gpt-5.1.toml -> release_date = "2025-11-14"
models.dev/providers/abacus/models/gpt-5.1.toml -> release_date = "2025-11-13"
models.dev/providers/aihubmix/models/gpt-5.1.toml -> release_date = "2025-11-15"
models.dev/providers/jiekou/models/gpt-5.1.toml -> release_date = "2026-02"

There are some properties that must be identical across providers.
Including but not limited to:

• release_date
• update_date
• knowledge
• reasoning
• open_weights
• family