Anthropic: Claude Opus 4.7 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 Anthropic: Claude Opus 4.7's 1000K.
- xAI: Grok 4.20 is 75% cheaper per 1K input tokens than Anthropic: Claude Opus 4.7 ($0.0013 vs $0.0050).
- Anthropic: Claude Opus 4.7 is built by Anthropic; xAI: Grok 4.20 is built by xAI.
Specifications
| Anthropic: Claude Opus 4.7 | xAI: Grok 4.20 | |
|---|---|---|
| Provider | Anthropic | xAI |
| Context window | 1000K | 2000K |
| Max output tokens | 8192 | 8192 |
| Input price / 1K tokens | $0.0050 | $0.0013 |
| Output price / 1K tokens | $0.0250 | $0.0025 |
| Vision support | Yes | Yes |
| Function calling | No | No |
| License | Proprietary | Proprietary |
About Anthropic: Claude Opus 4.7
US·ClosedOpus 4.7 is the next generation of Anthropic's Opus family, built for long-running, asynchronous agents. Building on the coding and agentic strengths of Opus 4.6, it delivers stronger performance on...
View Anthropic: Claude Opus 4.7 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 Anthropic: Claude Opus 4.7 and xAI: Grok 4.20 side-by-side on PromptPit.
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