Grok-1.5 vs Nova Pro
Nova Pro leads the LLM Stats Score 12.3 to -2.6.
xAI · Amazon · Updated for 2026
Which is better?
Nova Pro leads the overall LLM Stats Score 12.3 to -2.6, ranking #251 overall.
In the 7 individual benchmarks reported for both models, Nova Pro wins 7; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Grok-1.5
- you are already invested in the xAI ecosystem
Choose Nova Pro
- overall performance matters — it scores 12.3 and ranks #251 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 7 of 7 exact shared results
- you want the most recent training data — it shipped Nov 2024
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
9 reported for Grok-1.5 · 27 for Nova Pro
Grok-1.5 outperforms in 0 benchmarks, while Nova Pro is better at 7 benchmarks (DocVQA, GPQA, GSM8k, HumanEval, MATH, MMLU, MMMU).
Nova Pro significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Nova Pro specifies input context (300,000 tokens). Only Nova Pro specifies output context (300,000 tokens).
Input capabilities
Documented input modalities across available providers
Nova Pro supports multimodal inputs, whereas Grok-1.5 does not.
Nova Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.
Grok-1.5
Nova Pro
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Grok-1.5 was released on 2024-03-28, while Nova Pro was released on 2024-11-20.
Nova Pro is 8 months newer than Grok-1.5.
Mar 28, 2024
2.5 years ago
Nov 20, 2024
1.8 years ago
7mo newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-1.5 and Nova Pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-1.5 vs Nova Pro.