Claude 4.5 Sonnet
Released · 55 days after Claude 4.1 Opus
Key info
Context window
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Max output
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Input price
$3.00 /1M
Output price
$15.00 /1M
Prices are the median across providers tracked by Artificial Analysis, not Opper billing.
Benchmarks
Independent benchmark scores — composite indices for reasoning, coding, and math, plus individual eval scores where available.
Global rank#167 of 597 LLMs
TierEfficient
Intelligence Index29.9
Math Index37.0
Reasoning & knowledge
MMLU-Pro
86%
GPQA Diamond
73%
Humanity's Last Exam
7%
Long-context reasoning
52%
Coding
LiveCodeBench
59%
SciCode
43%
Agentic & tool use
Terminal-Bench Hard
29%
τ²-Bench Telecom
70%
Math & instruction following
AIME 2025
37%
IFBench
43%
See full leaderboard →Benchmarks via Artificial Analysis · View on AA
Available routes
No routes currently available — Claude 4.5 Sonnet isn't routed through the Opper gateway right now. It's tracked here for its release history.
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