Compare Grok 3 Beta by xAI against Nova Premier 1.0 by Amazon, context windows of 131K vs 1.0M, tested across 51 shared challenges. Updated April 2026.
Grok 3 Beta and Nova Premier 1.0 are both competitive models. Grok 3 Beta costs $2/M input tokens vs $2.5/M for Nova Premier 1.0. Context windows: 131K vs 1000K tokens. Compare their real outputs side by side below.
Grok 3 Beta is made by xai while Nova Premier 1.0 is from amazon. Grok 3 Beta has a 131K token context window compared to Nova Premier 1.0's 1000K. On pricing, Grok 3 Beta costs $2/M input tokens vs $2.5/M for Nova Premier 1.0.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Grok 3 Beta is 3.1x cheaper per token — worth considering if cost matters.
Nova Premier 1.0 uses 2.0x more sentence length
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

Compare Grok 3 Beta by xAI against Nova Premier 1.0 by Amazon, context windows of 131K vs 1.0M, tested across 51 shared challenges. Updated April 2026.
Grok 3 Beta and Nova Premier 1.0 are both competitive models. Grok 3 Beta costs $2/M input tokens vs $2.5/M for Nova Premier 1.0. Context windows: 131K vs 1000K tokens. Compare their real outputs side by side below.
Grok 3 Beta is made by xai while Nova Premier 1.0 is from amazon. Grok 3 Beta has a 131K token context window compared to Nova Premier 1.0's 1000K. On pricing, Grok 3 Beta costs $2/M input tokens vs $2.5/M for Nova Premier 1.0.
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Grok 3 Beta is 3.1x cheaper per token — worth considering if cost matters.
Nova Premier 1.0 uses 2.0x more sentence length
Ask them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.

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46 fights queued
34+ more head-to-head results. Free. Not a trick.
Free account. No card required. By continuing, you agree to Rival's Terms and Privacy Policy