Claude Sonnet 4.5 vs Nova Pro
Side-by-side benchmark comparison across coding, math, reasoning, speed, and pricing.
Claude Sonnet 4.5 by Anthropic wins on 10 of 14 benchmarks against Nova Pro by Amazon, which leads on 4. This head-to-head comparison covers coding, math, reasoning, speed, and pricing metrics from our benchmark data.
Category-by-Category Breakdown
General Intelligence: In general intelligence, Claude Sonnet 4.5 scores 1380 on Chatbot Arena ELO compared to Nova Pro's 1180, while Claude Sonnet 4.5 scores 83.0% on MMLU-Pro compared to Nova Pro's 55.0%.
Coding: In coding, Claude Sonnet 4.5 scores 90.0% on HumanEval+ compared to Nova Pro's 68.0%, while Claude Sonnet 4.5 scores 77.2% on SWE-bench Verified compared to Nova Pro's 18.0%, while Claude Sonnet 4.5 scores 62.0% on LiveCodeBench compared to Nova Pro's 22.0%.
Math: In math, Claude Sonnet 4.5 scores 87.0% on MATH compared to Nova Pro's 52.0%, while Claude Sonnet 4.5 scores 95.5% on GSM8K compared to Nova Pro's 78.0%.
Reasoning: In reasoning, Claude Sonnet 4.5 scores 83.4% on GPQA Diamond compared to Nova Pro's 30.0%, while Claude Sonnet 4.5 scores 45.0% on ARC-AGI compared to Nova Pro's 5.0%.
Context: In context, Claude Sonnet 4.5 scores 1.0M on Context Length compared to Nova Pro's 300K.
Pricing Comparison
Claude Sonnet 4.5 costs $3.0/1M input tokens and $15.0/1M output tokens, while Nova Pro costs $0.80/1M input and $3.2/1M output. Nova Pro is the more affordable option for API usage.
Speed Comparison
Claude Sonnet 4.5 generates output at 67 tok/s compared to Nova Pro's 100 tok/s, and the time to first token is 1170 ms for Claude Sonnet 4.5 versus 250 ms for Nova Pro. Nova Pro delivers faster throughput.
Verdict
For developers prioritizing coding and general intelligence and math, Claude Sonnet 4.5 has the edge. For those who value affordability and speed, Nova Pro is the stronger choice.
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Claude Sonnet 4.5 vs Nova Pro — FAQ
Which is better, Claude Sonnet 4.5 or Nova Pro?
Claude Sonnet 4.5 wins on more benchmarks overall (10 vs 4). However, the best choice depends on your specific needs — each model excels in different areas.
How does Claude Sonnet 4.5 compare to Nova Pro for coding?
Claude Sonnet 4.5 is better for coding, scoring 77.2% on SWE-bench Verified compared to 18.0%. SWE-bench tests real-world software engineering by resolving actual GitHub issues.
Is Claude Sonnet 4.5 cheaper than Nova Pro?
Yes, Nova Pro is cheaper. Claude Sonnet 4.5 costs $3.0/1M input and $15.0/1M output tokens. Nova Pro costs $0.80/1M input and $3.2/1M output tokens.
Which is faster, Claude Sonnet 4.5 or Nova Pro?
Nova Pro is faster, generating output at 100 tok/s compared to 67 tok/s. Faster output speed means shorter wait times for API responses.
What benchmarks does the Claude Sonnet 4.5 vs Nova Pro comparison cover?
This comparison covers 14 benchmarks including Chatbot Arena ELO, MMLU-Pro, HumanEval+, MATH, GPQA Diamond, SWE-bench Verified, Output Speed, LiveCodeBench, and more. Metrics span general intelligence, coding, math, reasoning, speed, and cost categories.