Claude Opus 4.5 vs Nova Micro Comparison

Comparing Claude Opus 4.5 and Nova Micro across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude Opus 4.5 outperforms in 1 benchmarks (GPQA), while Nova Micro is better at 0 benchmarks.

Claude Opus 4.5 significantly outperforms across most benchmarks.

Sat Mar 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Nova Micro costs less

For input processing, Claude Opus 4.5 ($5.00/1M tokens) is 166.7x more expensive than Nova Micro ($0.03/1M tokens).

For output processing, Claude Opus 4.5 ($25.00/1M tokens) is 178.6x more expensive than Nova Micro ($0.14/1M tokens).

In conclusion, Claude Opus 4.5 is more expensive than Nova Micro.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Sat Mar 14 2026 • llm-stats.com

Claude Opus 4.5

Input tokens$5.00

Output tokens$25.00

Best providerAnthropic

Nova Micro

Input tokens$0.03

Output tokens$0.14

Best providerAWS Bedrock

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Context Window

Maximum input and output token capacity

Claude Opus 4.5 accepts 200,000 input tokens compared to Nova Micro's 128,000 tokens. Nova Micro can generate longer responses up to 128,000 tokens, while Claude Opus 4.5 is limited to 64,000 tokens.

Claude Opus 4.5

Input200,000 tokens

Output64,000 tokens

Nova Micro

Input128,000 tokens

Output128,000 tokens

Sat Mar 14 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Claude Opus 4.5 supports multimodal inputs, whereas Nova Micro does not.

Claude Opus 4.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 4.5

Text

Images

Audio

Video

Nova Micro

Text

Images

Audio

Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Opus 4.5

Proprietary

Closed source

Nova Micro

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Opus 4.5 was released on 2025-11-24, while Nova Micro was released on 2024-11-20.

Claude Opus 4.5 is 12 months newer than Nova Micro.

Claude Opus 4.5

Nov 24, 2025

3 months ago

1.0yr newer

Nova Micro

Nov 20, 2024

1.3 years ago

Knowledge Cutoff

When training data ends

Claude Opus 4.5 has a documented knowledge cutoff of 2025-03-31, while Nova Micro's cutoff date is not specified.

We can confirm Claude Opus 4.5's training data extends to 2025-03-31, but cannot make a direct comparison without Nova Micro's cutoff date.

Claude Opus 4.5

Mar 2025

Nova Micro

—

Provider Availability

Claude Opus 4.5 is available from Anthropic. Nova Micro is available from Bedrock. The availability of providers can affect quality of the model and reliability.