The version numbers in a model id, e.g. gemini-3.7-flash → [3, 7] and claude-sonnet-4-5 → [4, 5]. A heuristic, and only meaningful between the models of one provider — and one vendor at that: it says nothing about gpt-5 against claude-sonnet-4.5.
gemini-3.7-flash
[3, 7]
claude-sonnet-4-5
[4, 5]
gpt-5
claude-sonnet-4.5
The version numbers in a model id, e.g.
gemini-3.7-flash→[3, 7]andclaude-sonnet-4-5→[4, 5]. A heuristic, and only meaningful between the models of one provider — and one vendor at that: it says nothing aboutgpt-5againstclaude-sonnet-4.5.