Which is better, Claude Opus 4.7 or DeepSeek-V4-Flash?

Across 45 shared benchmarks tracked on Vector Wire, Claude Opus 4.7 leads on 35 and DeepSeek-V4-Flash leads on 9 — Claude Opus 4.7 leads on more. Strengths differ by axis; the table below shows every head-to-head number with provenance.

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Claude Opus 4.7 vs DeepSeek-V4-Flash

AnthropicvsDeepSeek45 shared benchmarks35–9 head-to-head

Benchmark	Claude Opus 4.7	DeepSeek-V4-Flash
AA Agentic Index	64.6	61.3
AA Intelligence	55	51.8
AA-LCR	75.3	74.3
AA-Omniscience	27.3	-14.3
aime_2026	95.8	95.8
arc_agi_1	92	84
ARC-AGI-2	75.8	46
arena_elo	1494	1439
arena_text_factuality	1474	1434
Artificial Analysis Coding Index	73.6	69.1
browsecomp	79.8	73.2
coding_arena_elo	1557	1431
critpt	12	16.6
cybergym	73.8	76.7
gdpval	58.6	52.9
GDPval-AA (Elo)	1753	1395
GPQA Diamond	94.2	90.8
HLE	54.7	38.6
HLE (with tools)	54.7	45.1
hmmt_feb_2026	93.9	94.8
IFBench	58.6	79.2
itbenchSre	46.7	31.5
livebench_agentic_coding	50.7	46.8
livebench_coding	82.1	75
livebench_data_analysis	78.3	79.3
livebench_instruction_following	66.7	65.5
livebench_language	77.9	79.2
livebench_math	92.8	86.8
livebench_reasoning	87.2	86.6
MCP Atlas	79.1	69
OmniScience Accuracy	48.9	40.4
OmniScience Non-Hallucination	57.7	15.6
scicode	54.5	49.9
simplebench	61.7	46.3
simpleqa_verified	50.6	45
SWE-bench Multilingual	80.5	73.3
SWE-bench Pro	64.3	52.6
SWE-bench Verified	87.6	79
TauBench V3 - Banking	34.6	39.4
Terminal-Bench 2.0	69.4	56.9
Terminal-Bench 2.1	83.1	82.7
Terminal-Bench Hard	54.5	38.6
toolathlon	59.3	70.3
τ²-Bench Telecom (AA run)	88.6	95.6
τ³-Bench	28.9	22.9

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.