Claude Opus 4.5 vs Granite-4.0-1B

Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.

Agentic
Coding
Multimodal & Grounded
Reasoning
Knowledge
Instruction Following
Multilingual
Mathematics

Claude Opus 4.5· Granite-4.0-1B

Quick Verdict

Pick Claude Opus 4.5 if you want the stronger benchmark profile. Granite-4.0-1B only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Claude Opus 4.5 is clearly ahead on the aggregate, 78 to 40. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Claude Opus 4.5's sharpest advantage is in multilingual, where it averages 86.1 against 27.5. The single biggest benchmark swing on the page is MGSM, 90% to 27.5%.

Claude Opus 4.5 gives you the larger context window at 200K, compared with 128K for Granite-4.0-1B.

Operational tradeoffs

ProviderAnthropicIBM
PricePricing unavailableFree*
Speed46 t/sN/A
TTFT1.01sN/A
Context200K128K

Decision framing

BenchLM keeps the benchmark table and the operator tradeoffs on the same page so a better score does not hide a materially slower, pricier, or smaller-context model.

Runtime metrics show N/A when BenchLM does not have a sourced snapshot for that exact model. The scoring rules and freshness policy are documented on the methodology page.

BenchmarkClaude Opus 4.5Granite-4.0-1B
Agentic
Terminal-Bench 2.059.3%
BrowseComp73%
OSWorld-Verified68%
Coding
HumanEval91%73%
SWE-bench Verified80.9%
LiveCodeBench57%
SWE-bench Pro62%
Multimodal & Grounded
MMMU-Pro94%
OfficeQA Pro87%
Reasoning
MuSR93%
BBH87%59.7%
LongBench v282%
MRCRv281%
ARC-AGI-237.6%
KnowledgeClaude Opus 4.5 wins
MMLU90.8%59.7%
GPQA87%29.7%
SuperGPQA95%
MMLU-Pro81%32.9%
HLE20%
FrontierScience84%
SimpleQA95%
Instruction FollowingClaude Opus 4.5 wins
IFEval90%78.5%
MultilingualClaude Opus 4.5 wins
MGSM90%27.5%
MMLU-ProX84%
Mathematics
AIME 202399%
AIME 202499%
AIME 202598%
HMMT Feb 202395%
HMMT Feb 202497%
HMMT Feb 202596%
BRUMO 202596%
MATH-50089%
Frequently Asked Questions (4)

Which is better, Claude Opus 4.5 or Granite-4.0-1B?

Claude Opus 4.5 is ahead overall, 78 to 40. The biggest single separator in this matchup is MGSM, where the scores are 90% and 27.5%.

Which is better for knowledge tasks, Claude Opus 4.5 or Granite-4.0-1B?

Claude Opus 4.5 has the edge for knowledge tasks in this comparison, averaging 71.7 versus 31.7. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for instruction following, Claude Opus 4.5 or Granite-4.0-1B?

Claude Opus 4.5 has the edge for instruction following in this comparison, averaging 90 versus 78.5. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Claude Opus 4.5 or Granite-4.0-1B?

Claude Opus 4.5 has the edge for multilingual tasks in this comparison, averaging 86.1 versus 27.5. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 31, 2026

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