Best OpenAI Models in 2026

All OpenAI models ranked by benchmark performance — GPT-5, GPT-4o, o1, o3, and more.

GPT-5.4
OpenAIProprietary1M

88

overall

GPT-5.3 Codex
OpenAIProprietary400K

85

overall

GPT-5.2
OpenAIProprietary400K

83

overall

4
GPT-5.2-Codex
OpenAIProprietary400K

82

overall

5
GPT-5.1-Codex-Max
OpenAIProprietary400K

77

overall

6
GPT-5.1
OpenAIProprietary400K

76

overall

7
GPT-5 (high)
OpenAIProprietary128K

72

overall

8
o1-preview
OpenAIProprietary200K

71

overall

9
GPT-5 (medium)
OpenAIProprietary128K

70

overall

10
GPT-5 mini
OpenAIProprietary128K

68

overall

11
o3-pro
OpenAIProprietary200K

68

overall

12
o3
OpenAIProprietary200K

67

overall

13
o4-mini (high)
OpenAIProprietary200K

65

overall

14
GPT-4o
OpenAIProprietary128K

56

overall

15
GPT-4 Turbo
OpenAIProprietary128K

50

overall

16
GPT-OSS 120B
OpenAIOpen Weight128K

42

overall

17
GPT-OSS 20B
OpenAIOpen Weight128K

22

overall

Key Takeaways

  • The top model is GPT-5.4 by OpenAI with a score of 88.
  • The best open-weight model in this ranking is GPT-OSS 120B at position #16.
  • 17 models are included in this ranking.