BenchLeader

Claude Opus 4.7 vs Gemini 3 Flash

Verdict
  • Claude Opus 4.7 leads on quality: 65.6 vs 61.6.
  • Claude Opus 4.7 is stronger in agents & tools, coding, composite, human preference, long context, maths, multimodal, reasoning.
  • Gemini 3 Flash (thinking) is stronger in instruction following, knowledge.
  • Gemini 3 Flash (thinking) is 8.9× cheaper ($1.13 vs $10.00 per 1M blended).
  • Gemini 3 Flash (thinking) streams 4.2× faster (180 vs 43 tokens per second).
MetricClaude Opus 4.7Gemini 3 Flash (thinking)
BenchLeader Index65.661.6
Agents & tools score69.467.4
Coding score64.8
Composite score80.462.3
Human preference score69.1
Instruction following score58.775.4
Knowledge score66.569.0
Long context score65.965.5
Maths score65.4
Multimodal score65.764.4
Reasoning score66.6
Blended price $/M$10.00$1.13
Output speed43 tok/s180 tok/s
Time to first answer21.7 s6.1 s
Context window1M1M
Humanity's Last Exam36.2%
Terminal-Bench80.2%
SimpleBench61.7%
WeirdML76.4%
FrontierCode38.5%
GSO-Bench44.1%
Epoch Capabilities Index156.3
LMArena Text1495
LMArena Hard Prompts1519
LMArena Coding1547
LMArena WebDev1557
LMArena Vision1317
AA Intelligence Index40.726.3
IFBench58.6%78.0%
AA-LCR78.7%78.0%
MMMU-Pro78.8%79.9%
AA-Omniscience27.310.1
Terminal-Bench Hard51.5%38.6%
GPQA Diamond (AA)91.4%89.8%
Humanity's Last Exam (AA)42.3%36.6%
τ²-Bench Telecom (AA)88.6%80.4%
AIME (Vals)96.3%
LiveCodeBench85.1%
MMLU-Pro89.9%
IOI47.1%
LegalBench85.3%
CorpFin66.1%
TaxEval75.3%
Terminal-Bench 2.1 (Vals)68.5%
SWE-bench (Vals)82.0%
GPQA Diamond (Vals)90.2%
Vals Index56.1
HiL-Bench41.7%
EQ-Bench 41311
Kagi LLM Benchmark73.3%

Data as of 2026-09-10. Best configuration of each model; every score links to its source on the model pages.

Claude Opus 4.7 vs Gemini 3 Flash: questions

Is Claude Opus 4.7 better than Gemini 3 Flash?
Claude Opus 4.7 leads on quality: 65.6 vs 61.6. The BenchLeader Index combines every independent quality benchmark; Claude Opus 4.7 is ahead overall as of 2026-09-10, but check the category scores for your use.
Is Claude Opus 4.7 better than Gemini 3 Flash for agentic tasks?
Claude Opus 4.7 scores higher in agentic tasks (69 vs 67 on the category index, where 50 is average).
Which is cheaper, Claude Opus 4.7 or Gemini 3 Flash?
Gemini 3 Flash is cheaper: $1.13 against $10.00 per million tokens, blended at three input tokens per output token.
Which is faster, Claude Opus 4.7 or Gemini 3 Flash?
Gemini 3 Flash streams faster: 180 against 43 output tokens per second.
Which has the larger context window?
Both accept 1M tokens of context.