Which is better, Claude Opus 4.5 or Qwen3.5 397B A17B?

Across 62 shared benchmarks tracked on Vector Wire, Claude Opus 4.5 leads on 37 and Qwen3.5 397B A17B leads on 25 — Claude Opus 4.5 leads on more. Strengths differ by axis; the table below shows every head-to-head number with provenance.

SEEDRefresh Models —Deals —Regulatory —Sources —

Claude Opus 4.5 vs Qwen3.5 397B A17B

AnthropicvsAlibaba62 shared benchmarks37–25 head-to-head

Benchmark	Claude Opus 4.5	Qwen3.5 397B A17B
AA Agentic Index	59.6	53.3
AA Intelligence	41.9	34.3
AA-LCR	76	72.7
AA-Omniscience	14	-30.8
aime_2026	95.1	94.2
arena_elo	1473	1442
arena_text_factuality	1458	1445
Artificial Analysis Coding Index	47.8	48.2
browsecomp	37	69
BrowseComp (context management)	59.2	78.6
browsecomp_zh	62.4	70.3
C-Eval	92.2	93
CC-OCR	76.9	82
charxiv_rq	68.5	80.8
Claw Eval (pass@3)	59.6	48.1
Claw-Eval Avg	76.6	70.7
coding_arena_elo	1495	1399
critpt	4.6	1.7
DynaMath	79.7	86.3
ERQA	46.8	67.5
gdpval	47.3	35.8
GPQA Diamond	87	89.3
HLE	30.8	29
HLE (with tools)	43.4	48.3
hmmt_feb_2025	92.9	94.8
hmmt_feb_2026	85.3	87.9
hmmt_nov_2025	93.3	92.7
IFBench	58	78.8
imo_answer_bench	84	80.9
LiveCodeBench v6	84.8	83.6
longbench_v2	64.4	63.2
MLVU	81.7	86.7
mmlu_redux	95.6	94.9
MMLU-Pro	90	87.8
mmmlu	90.8	88.5
MMMU	80.7	85
MMMU-Pro	74	79
MMStar	73.2	83.8
multichallenge	59	67.6
MV-Bench	67.2	77.6
nl2repo	43.2	32.2
OmniScience Accuracy	46.6	30.8
OmniScience Non-Hallucination	39	17.3
QwenClawBench	52.3	51.8
QwenWebBench	1536	1186
RealWorldQA	77	83.9
scicode	50	42
Seal-0	47.7	46.9
simpleqa_verified	41.8	26
SimpleVQA	69.7	67.1
SkillsBench Avg5	45.3	30
supergpqa	70.6	70.4
SWE-bench Multilingual	77.5	69.3
SWE-bench Pro	57.1	50.9
SWE-bench Verified	81.5	76.4
Terminal-Bench 2.0	59.3	52.5
Terminal-Bench Hard	47	40.9
toolathlon	43.5	38.3
V*	67	95.8
VideoMME (w sub.)	77.7	87.5
VideoMMMU	84.4	84.7
τ²-Bench Telecom (AA run)	89.5	95.6

Best tracked score per model per benchmark (default configuration; source-attributed). ↓ marks lower-is-better metrics. Open either model for its full surface, provenance and pricing.