Model Comparison

Grok-1.5 vs Nova MicroWhich is better in 2026?

Nova Micro significantly outperforms across most benchmarks.

Verdict: Grok-1.5 vs Nova Micro — which is better?

Grok-1.5 (by xAI) and Nova Micro (by Amazon) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Grok-1.5 outperforms in 1 benchmarks (MMLU), while Nova Micro is better at 4 benchmarks (GPQA, GSM8k, HumanEval, MATH). Nova Micro significantly outperforms across most benchmarks.

Choose Grok-1.5 if…

  • you are already invested in the xAI ecosystem

Choose Nova Micro if…

  • you want the strongest raw capability — it leads on 4 of 5 shared benchmarks
  • you want the most recent training data — it shipped Nov 2024
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

Grok-1.5 outperforms in 1 benchmarks (MMLU), while Nova Micro is better at 4 benchmarks (GPQA, GSM8k, HumanEval, MATH).

Nova Micro significantly outperforms across most benchmarks.

Sat Jun 06 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Nova Micro specifies input context (128,000 tokens). Only Nova Micro specifies output context (128,000 tokens).

xAI
Grok-1.5
Input- tokens
Output- tokens
Amazon
Nova Micro
Input128,000 tokens
Output128,000 tokens
Sat Jun 06 2026 • llm-stats.com

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Grok-1.5

Proprietary

Closed source

Nova Micro

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-1.5 was released on 2024-03-28, while Nova Micro was released on 2024-11-20.

Nova Micro is 8 months newer than Grok-1.5.

Grok-1.5

Mar 28, 2024

2.2 years ago

Nova Micro

Nov 20, 2024

1.5 years ago

7mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

xAI
Higher MMLU score (81.3% vs 77.6%)
Amazon
Larger context window (128,000 tokens)
Higher GPQA score (40.0% vs 35.9%)
Higher GSM8k score (92.3% vs 90.0%)
Higher HumanEval score (81.1% vs 74.1%)
Higher MATH score (69.3% vs 50.6%)

Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-1.5
Amazon
Nova Micro

FAQ

Common questions about Grok-1.5 vs Nova Micro.

Which is better, Grok-1.5 or Nova Micro?

Nova Micro significantly outperforms across most benchmarks. Grok-1.5 is made by xAI and Nova Micro is made by Amazon. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Grok-1.5 compare to Nova Micro in benchmarks?

Grok-1.5 scores GSM8k: 90.0%, DocVQA: 85.6%, MMLU: 81.3%, HumanEval: 74.1%, MMMU: 53.6%. Nova Micro scores GSM8k: 92.3%, ARC-C: 90.2%, Translation Set1→en COMET22: 88.7%, Translation en→Set1 COMET22: 88.5%, IFEval: 87.2%.

What are the context window sizes for Grok-1.5 and Nova Micro?

Grok-1.5 supports an unknown number of tokens and Nova Micro supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

Who makes Grok-1.5 and Nova Micro?

Grok-1.5 is developed by xAI and Nova Micro is developed by Amazon.

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