xAI (Grok) (11 models) vs Amazon (5 models) - compared across composite scores, pricing, capabilities, and context windows.
| xAI (Grok) | Score | vs | Amazon | Score |
|---|---|---|---|---|
| Grok 4.20 | 89 | Nova 2 Lite | 61 | |
| Grok 4 | 88 | Nova Premier 1.0 | 40 | |
| Grok 4.20 Multi-Agent | 88 | Nova Lite 1.0 | 40 | |
| Grok 4.1 Fast | 78 | Nova Micro 1.0 | 40 | |
| Grok 4.3 | 76 | Nova Pro 1.0 | 40 |
| Capability | xAI (Grok) | Amazon | Leader |
|---|---|---|---|
Vision | 6/11 | 4/5 | xAI (Grok) |
Reasoning | 9/11 | 1/5 | xAI (Grok) |
Function Calling | 10/11 | 5/5 | xAI (Grok) |
JSON Mode | 11/11 | 0/5 | xAI (Grok) |
Web Search | 11/11 | 0/5 | xAI (Grok) |
Streaming | 11/11 | 5/5 | xAI (Grok) |
Image Output | 0/11 | 0/5 | Tie |
| Metric | xAI (Grok) | Amazon |
|---|---|---|
| Cheapest Input (per 1M tokens) | $0.200 Grok 4.1 Fast | $0.035 Nova Micro 1.0 |
| Cheapest Output (per 1M tokens) | $0.500 | $0.140 |
| Most Expensive Input (per 1M tokens) | $3.00 Grok 4 | $2.50 Nova Premier 1.0 |
| Most Expensive Output (per 1M tokens) | $15.00 | $12.50 |
| Free Models | 0 | 0 |
| Max Context Window | 2.0M | 1.0M |
| Model | Score | Input $/M | Output $/M |
|---|---|---|---|
| Grok 4.20 | 89 | $1.25 | $2.50 |
| Grok 4 | 88 | $3.00 | $15.00 |
| Grok 4.20 Multi-Agent | 88 | $2.00 | $6.00 |
| Grok 4.1 Fast | 78 | $0.200 | $0.500 |
| Grok 4.3 | 76 | $1.25 | $2.50 |
| Grok 3 | 74 | $3.00 | $15.00 |
| Grok 3 Beta | 74 | $3.00 | $15.00 |
| Grok 4 Fast | 73 | $0.200 | $0.500 |
| Grok 3 Mini Beta | 63 | $0.300 | $0.500 |
| Grok 3 Mini | 51 | $0.300 | $0.500 |
| Grok Code Fast 1 | 40 | $0.200 | $1.50 |
| Model | Score | Input $/M | Output $/M |
|---|---|---|---|
| Nova 2 Lite | 61 | $0.300 | $2.50 |
| Nova Premier 1.0 | 40 | $2.50 | $12.50 |
| Nova Lite 1.0 | 40 | $0.060 | $0.240 |
| Nova Micro 1.0 | 40 | $0.035 | $0.140 |
| Nova Pro 1.0 | 40 | $0.800 | $3.20 |
Compare any two AI providers side-by-side.
xAI's pricing reflects its focus on premium capabilities - their cheapest models include web search (10/10 rating) which Amazon lacks entirely (0/5), and superior reasoning abilities (8/10 vs 1/5). The $0.360 premium per million tokens buys access to xAI's 2.0M context window (double Amazon's 1.0M) and consistently higher benchmark scores across their 10-model portfolio.
xAI pursues a diversification strategy with 10 models spanning different performance tiers, achieving a 75/100 top score with Grok 4.1 Fast. Amazon's compact 5-model lineup focuses on cost optimization, with their best performer (Nova 2 Lite) scoring only 54/100 but offering the lowest price point at $0.140/M tokens - suggesting Amazon prioritizes accessible pricing over benchmark leadership.
xAI dominates real-time applications with perfect 10/10 web search across its lineup and 8/10 reasoning capabilities, enabling Grok models to fetch and analyze current information. Amazon scores 0/5 on web search and only 1/5 on reasoning, making their models unsuitable for applications requiring real-time data despite their 5/5 function calling score matching xAI's 9/10.
The 21-point gap represents a fundamental capability difference - xAI's top model handles 2.0M token contexts versus Amazon's 1.0M limit, while delivering superior vision capabilities (5/10 vs 4/5 when normalized). This performance delta justifies xAI's premium pricing for applications requiring long-context understanding or complex multimodal tasks, though Amazon's Nova 2 Lite remains competitive for basic inference at $0.140/M tokens.
xAI's 8/10 reasoning score enables complex analytical tasks but comes at 3.5x minimum cost ($0.500 vs $0.140), while Amazon's perfect 5/5 function calling makes their models ideal for tool-use and API integrations despite poor reasoning (1/5). Developers building autonomous agents should choose xAI for decision-making capabilities across 10 model options, while Amazon's 5 models excel at structured API orchestration tasks.