Model Comparison

Grok-4 vs Nova Pro

Grok-4 significantly outperforms across most benchmarks. Nova Pro is 4.3x cheaper per token.

Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Grok-4 outperforms in 1 benchmarks (GPQA), while Nova Pro is better at 0 benchmarks.

Grok-4 significantly outperforms across most benchmarks.

Thu Apr 16 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Nova Pro costs less

For input processing, Grok-4 ($3.00/1M tokens) is 3.8x more expensive than Nova Pro ($0.80/1M tokens).

For output processing, Grok-4 ($15.00/1M tokens) is 4.7x more expensive than Nova Pro ($3.20/1M tokens).

In conclusion, Grok-4 is more expensive than Nova Pro.*

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

Lowest available price from all providers
Thu Apr 16 2026 • llm-stats.com
xAI
Grok-4
Input tokens$3.00
Output tokens$15.00
Best providerxAI
Amazon
Nova Pro
Input tokens$0.80
Output tokens$3.20
Best providerAWS Bedrock
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Nova Pro accepts 300,000 input tokens compared to Grok-4's 256,000 tokens. Nova Pro can generate longer responses up to 300,000 tokens, while Grok-4 is limited to 8,000 tokens.

xAI
Grok-4
Input256,000 tokens
Output8,000 tokens
Amazon
Nova Pro
Input300,000 tokens
Output300,000 tokens
Thu Apr 16 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Grok-4 and Nova Pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Grok-4

Text
Images
Audio
Video

Nova Pro

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.

Grok-4

Proprietary

Closed source

Nova Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-4 was released on 2025-07-09, while Nova Pro was released on 2024-11-20.

Grok-4 is 8 months newer than Nova Pro.

Grok-4

Jul 9, 2025

9 months ago

7mo newer
Nova Pro

Nov 20, 2024

1.4 years ago

Knowledge Cutoff

When training data ends

Grok-4 has a documented knowledge cutoff of 2024-12-31, while Nova Pro's cutoff date is not specified.

We can confirm Grok-4's training data extends to 2024-12-31, but cannot make a direct comparison without Nova Pro's cutoff date.

Grok-4

Dec 2024

Nova Pro

—

Provider Availability

Grok-4 is available from xAI. Nova Pro is available from Bedrock.

Grok-4

xai logo
xAI
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Nova Pro

bedrock logo
AWS Bedrock
Input Price:Input: $0.80/1MOutput Price:Output: $3.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

xAI
Higher GPQA score (87.5% vs 46.9%)
Amazon
Larger context window (300,000 tokens)
Less expensive input tokens
Less expensive output tokens
xAIGrok-4
AmazonNova Pro
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
xAI
Grok-4
Amazon
Nova Pro

FAQ

Common questions about Grok-4 vs Nova Pro

Grok-4 significantly outperforms across most benchmarks. Grok-4 is made by xAI and Nova Pro is made by Amazon. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Grok-4 scores AIME 2025: 91.7%, HMMT25: 90.0%, GPQA: 87.5%, LiveCodeBench: 79.0%, Humanity's Last Exam: 40.0%. Nova Pro scores ARC-C: 94.8%, GSM8k: 94.8%, DocVQA: 93.5%, IFEval: 92.1%, ChartQA: 89.2%.
Nova Pro is 3.8x cheaper for input tokens. Grok-4 costs $3.00/M input and $15.00/M output via xai. Nova Pro costs $0.80/M input and $3.20/M output via bedrock.
Grok-4 supports 256K tokens and Nova Pro supports 300K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (256K vs 300K), input pricing ($3.00 vs $0.80/M). See the full comparison above for benchmark-by-benchmark results.
Grok-4 is developed by xAI and Nova Pro is developed by Amazon.