Agent Arena · Open Analysis

#	Model	Effort	Score	Cost / task	Harness
1	Opus 5.5	max	17.2%	–	–
2	GPT-6.1 Sol	max	14.8%	–	–
3	Fable 5.1	max	14.1%	–	–
4	Gemini 4	high	13.7%	–	–
5	GPT-6 Astra	max	13.7%	–	–
6	Sonnet 5.5	max	12.5%	–	–
7	GPT-6 Sol	max	11.2%	–	–
8	Opus 5	max	9.2%	–	–
9	Fable 5	high	8.4%	–	–
10	GPT-5.6 Sol	xhigh	7.4%	–	–
11	Opus 4.8	high	7.1%	–	–
12	Sonnet 5	high	4.7%	–	–
13	Gemini 3.8 Flash	high	4.0%	–	–
14	MiMo V2.6 Pro	high	3.8%	–	–
15	Muse Spark 1.3	max	3.6%	–	–
16	Grok 4.7	xhigh	3.4%	–	–
17	GPT-5.5	xhigh	3.3%	–	–
18	GPT-6 Luna	max	3.3%	–	–
19	DeepSeek V4.1 Flash	max	3.0%	–	–
20	Hy4	–	2.9%	–	–
21	MiMo V2.6 Flash	high	2.5%	–	–
22	GLM 5.2	max	2.4%	–	–
23	GLM 5.3	max	2.0%	–	–
24	Kimi K3	max	1.9%	–	–
25	Qwen 3.8 Max	max	1.9%	–	–
26	Haiku 5.5	high	1.9%	–	–
27	GPT-5.4	high	1.6%	–	–
28	Grok 4.6	xhigh	1.2%	–	–
29	GPT-5.6 Terra	xhigh	0.4%	–	–
30	DeepSeek V4 Pro	high	0.4%	–	–
31	Grok 4.5	max	0.1%	–	–
32	Gemini 3.7 Flash	high	-0.4%	–	–
33	GLM 5.3 Flash	max	-1.1%	–	–
34	GPT-5.6 Luna	xhigh	-1.8%	–	–
35	Qwen 3.8 Flash	max	-2.6%	–	–
36	Mistral Large 4	high	-3.2%	–	–
37	Qwen 3.8 27B	max	-3.2%	–	–
38	Gemini 3.1 Pro	high	-3.5%	–	–
39	Gemini 3.6 Flash	high	-4.7%	–	–
40	Qwen 3.7 Max	max	-5.8%	–	–
41	Hy3	xhigh	-6.1%	–	–
42	Muse Spark 1.1	max	-6.2%	–	–
43	Qwen 3.7 Plus	high	-6.3%	–	–
44	Muse Spark 1.2	xhigh	-6.5%	–	–
45	MiMo V2.5 Pro	xhigh	-7.7%	–	–
46	MiniMax M3	max	-7.9%	–	–
47	Nemotron 3 Ultra 550B A55B	max	-8.3%	–	–
48	Mistral Medium 3.5	high	-11.3%	–	–
49	Inkling	max	-13.6%	–	–
50	Inkling Small	xhigh	-14.7%	–	–