These are the top open and closed model: Opus 4.7, GPT-5.5 Pro, DeepSeek V4, GLM-5.1 and Gemini 3.1 Pro. They both show similar performance in my testing.
Open models: The only open models that have equivalent quality compared to the top models are DeepSeek and GLM.
Cost:
GPT 5.5 Pro: Super expensive it makes no sense (cost is around $2)
Gemini/Opus: $0.2/$0.1. Opus is cheaper as it consumed less tokens
DeepSeek/GLM: $0.019/$0.021 10-5 times cheaper than Gemini and Opus
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