AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Nonsense detection

BullshitBench v2

Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better.

Rankings

Higher is better
1
Claude Opus 4.8
Anthropic · May 28 2026
95%
2
Claude Sonnet 4.6
Anthropic · Feb 17 2026
91%
3
Claude Opus 4.5
Anthropic · Nov 24 2025
90%
4
Claude Opus 4.6
Anthropic · Feb 5 2026
87%
5
Claude Opus 4.7
Anthropic · Apr 16 2026
83%
6
Claude Sonnet 5
Anthropic · Jun 30 2026
80%
7
Claude Sonnet 4.5
Anthropic · Sep 29 2025
79%
8
Claude Haiku 4.5
Anthropic · Oct 15 2025
77%
9
Kimi K3
Moonshot AI · Jul 16 2026
73%
10
Kimi K2.6
Moonshot AI · Apr 21 2026
65%
11
Grok 4.20 Beta
SpaceXAI · Feb 17 2026
56%
12
Claude Fable 5
Anthropic · Jun 9 2026
54%
12
Grok 4.5
SpaceXAI · Jul 8 2026
54%
14
GPT-5.6 Terra
OpenAI · Jun 26 2026
53%
15
Kimi K2.5
Moonshot AI · Jan 27 2026
52%
16
Claude 3.5 Haiku
Anthropic · Oct 22 2024
50%
16
Grok 4.3 Beta
SpaceXAI · Apr 17 2026
50%
18
Claude 3.7 Sonnet
Anthropic · Feb 24 2025
49%
19
GPT-5.4
OpenAI · Mar 5 2026
48%
20
GPT-5.5
OpenAI · Apr 23 2026
47%
20
GPT-5.6 Sol
OpenAI · Jun 26 2026
47%
22
Claude 3.5 Sonnet
Anthropic · Jun 20 2024
45%
23
Claude Opus 4.1
Anthropic · Aug 5 2025
43%
24
GPT-5.6 Luna
OpenAI · Jun 26 2026
40%
25
GPT-5-Codex
OpenAI · Sep 15 2025
39%
26
GPT-5.2
OpenAI · Dec 11 2025
38%
27
Gemini 3.1 Pro
Google · Feb 19 2026
37%
28
GPT-5.5-Pro
OpenAI · Apr 23 2026
36%
29
Claude Opus 4
Anthropic · May 22 2025
34%
30
GPT-5.4 mini
OpenAI · Mar 17 2026
32%
31
GLM-5.2
Z.ai · Jun 16 2026
31%
32
Claude Sonnet 4
Anthropic · May 22 2025
30%
33
LLaMA 4 Maverick
Meta · Apr 5 2025
28%
33
GLM-5
Z.ai · Feb 12 2026
28%
35
o3
OpenAI · Apr 16 2025
26%
36
GPT-5.1
OpenAI · Nov 12 2025
25%
37
GPT-5.3-Codex
OpenAI · Feb 5 2026
24%
38
GLM-5.1
Z.ai · Apr 7 2026
22%
39
GPT-5
OpenAI · Aug 7 2025
21%
40
Gemini 2.5 Pro
Google · Mar 25 2025
20%
40
Gemini 3.5 Flash
Google · May 19 2026
20%
42
LLaMA 4 Scout
Meta · Apr 5 2025
19%
42
Gemini 2.5 Flash
Google · Apr 17 2025
19%
42
Grok 4.1 Fast
SpaceXAI · Nov 19 2025
19%
45
DeepSeek-V4-Flash
DeepSeek · Apr 24 2026
18%
46
Gemini 2.0 Flash
Google · Jan 30 2025
15%
47
LLaMA 3.1
Meta · Jul 23 2024
14%
47
GPT-4.1
OpenAI · Apr 14 2025
14%
47
GPT-5.4 nano
OpenAI · Mar 17 2026
14%
47
DeepSeek-V4-Pro
DeepSeek · Apr 24 2026
14%
51
DeepSeek-V3.2
DeepSeek · Dec 1 2025
13%
52
GPT-4o
OpenAI · May 13 2024
12%
53
gpt-oss-120b
OpenAI · Aug 5 2025
11%
53
Gemini 3.1 Flash-Lite
Google · Mar 3 2026
11%
55
Claude 3 Haiku
Anthropic · Mar 4 2024
10%
55
Kimi K2
Moonshot AI · Jul 11 2025
10%
57
o4-mini
OpenAI · Apr 16 2025
8%
57
DeepSeek R1-0528
DeepSeek · May 28 2025
8%
57
GLM-4.5
Z.ai · Jul 28 2025
8%
60
GPT-4o mini
OpenAI · Jul 18 2024
2%
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