Cohere Rerank 3.5 vs Amazon Nova Micro

Compare Cohere Rerank 3.5 and Amazon Nova Micro: pricing, performance, context window, latency, and best use cases. Side-by-side comparison on XALEN.

Updated 2026-05-21 · By Abhishek Raj · Our methodology

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Feature Cohere Rerank 3.5 Amazon Nova Micro
CategoryRerankingCompact
Parameters~600M~8B
Context Window4K128K
Input Price$0.002/search/1M tokens$0.001/1M tokens
Output PriceN/A/1M tokens$0.004/1M tokens
Latency~25ms~50ms

Choose Cohere Rerank 3.5 when:

  • ✓ Search reranking
  • ✓ RAG improvement
  • ✓ Result quality
Key Strengths:

Higher quality, Multilingual, Fast

Choose Amazon Nova Micro when:

  • ✓ Classification
  • ✓ Intent detection
  • ✓ Preprocessing
Key Strengths:

Cheapest inference, Ultra-fast, Text-only

Verdict: Cohere Rerank 3.5 vs Amazon Nova Micro

For cost efficiency, Amazon Nova Micro wins at $0.001/1M input tokens. For speed, Cohere Rerank 3.5 is faster at ~25ms. Cohere Rerank 3.5 excels at Search reranking while Amazon Nova Micro is better for Classification. Both are available on XALEN through a single API — try them in the Playground to see which fits your workload.

Detailed Analysis

Pricing Comparison

Cohere Rerank 3.5 costs $0.002/search/1M input tokens and N/A/1M output tokens. Amazon Nova Micro costs $0.001 input and $0.004 output. Amazon Nova Micro is 2.0x cheaper on input tokens. XALEN offers batch processing at 50% discount on both models.

Performance & Context

Cohere Rerank 3.5 has a 4K context window with ~25ms latency. Amazon Nova Micro offers 128K context at ~50ms. Amazon Nova Micro has the larger context window.

Best For

Cohere Rerank 3.5 (Reranking) is optimized for: Search reranking, RAG improvement, Result quality. Amazon Nova Micro (Compact) works best for: Classification, Intent detection, Preprocessing.

Try Both on XALEN

Both models are available through XALEN's OpenAI-compatible API. Switch between them by changing the model parameter:

from xalen import XALEN

client = XALEN(api_key="xln_test_YOUR_KEY")

# Use Cohere Rerank 3.5
response_a = client.chat.completions.create(
    model="rerank-v3-5",
    messages=[{"role": "user", "content": "Your question here"}]
)

# Use Amazon Nova Micro
response_b = client.chat.completions.create(
    model="amazon-nova-micro",
    messages=[{"role": "user", "content": "Your question here"}]
)

Start Building with XALEN

200+ AI models. One API. Pay-as-you-go.

Get API Key Try in Playground

Frequently Asked Questions

Which is better, Cohere Rerank 3.5 or Amazon Nova Micro?

Cohere Rerank 3.5 (Reranking, ~600M) offers Higher quality. Amazon Nova Micro (Compact, ~8B) offers Cheapest inference. Choose Cohere Rerank 3.5 for Search reranking or Amazon Nova Micro for Classification.

How much does Cohere Rerank 3.5 cost vs Amazon Nova Micro?

Cohere Rerank 3.5: $0.002/search/1M input, N/A/1M output. Amazon Nova Micro: $0.001/1M input, $0.004/1M output. Both available on XALEN with batch processing at 50% discount.

Can I use both models on XALEN?

Yes. XALEN provides 200+ models through a single OpenAI-compatible API. Switch between Cohere Rerank 3.5 and Amazon Nova Micro by changing the model parameter. No code changes needed.

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Last updated: 2026-05-21. Pricing and specifications may change. Check pricing page for latest rates.