Amazon: Nova Premier 1.0 vs xAI: Grok 4.20
Side-by-side comparison — pricing, context window, capabilities, and live leaderboard data.
Key differences
- xAI: Grok 4.20 has a 2000K-token context window — 2.0× larger than Amazon: Nova Premier 1.0's 1000K.
- xAI: Grok 4.20 is 50% cheaper per 1K input tokens than Amazon: Nova Premier 1.0 ($0.0013 vs $0.0025).
- Amazon: Nova Premier 1.0 is built by Amazon; xAI: Grok 4.20 is built by xAI.
Specifications
| Amazon: Nova Premier 1.0 | xAI: Grok 4.20 | |
|---|---|---|
| Provider | Amazon | xAI |
| Context window | 1000K | 2000K |
| Max output tokens | 8192 | 8192 |
| Input price / 1K tokens | $0.0025 | $0.0013 |
| Output price / 1K tokens | $0.0125 | $0.0025 |
| Vision support | Yes | Yes |
| Function calling | No | No |
| License | Proprietary | Proprietary |
About Amazon: Nova Premier 1.0
US·ClosedAmazon Nova Premier is the most capable of Amazon’s multimodal models for complex reasoning tasks and for use as the best teacher for distilling custom models.
View Amazon: Nova Premier 1.0 reliability and benchmark history →About xAI: Grok 4.20
US·ClosedGrok 4.20 is a reasoning model from xAI with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering...
View xAI: Grok 4.20 reliability and benchmark history →Try them yourself
Run the same prompt against Amazon: Nova Premier 1.0 and xAI: Grok 4.20 side-by-side on PromptPit.
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