Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective...
Model details →Anthropic: Claude Opus 4.6 (batch) vs xAI: Grok 4.20 Beta
xAI: Grok 4.20 Beta wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
Grok 4.20 Beta is xAI's newest flagship model with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherance, delivering consistently precise and truth…
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Opus 4.6 (batch) | xAI: Grok 4.20 Beta | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 2M | 🏆 xAI: Grok 4.20 Beta |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $2.50 | $2.00 | 🏆 xAI: Grok 4.20 Beta |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $12.50 | $6.00 | 🏆 xAI: Grok 4.20 Beta |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Anthropic: Claude Opus 4.6 (batch) better than xAI: Grok 4.20 Beta?
xAI: Grok 4.20 Beta wins on 3 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Anthropic: Claude Opus 4.6 (batch) and xAI: Grok 4.20 Beta?
Input: $2.50 vs $2.00 per 1M tokens. Output: $12.50 vs $6.00 per 1M tokens.
What context windows do Anthropic: Claude Opus 4.6 (batch) and xAI: Grok 4.20 Beta support?
Anthropic: Claude Opus 4.6 (batch) supports up to 1M tokens. xAI: Grok 4.20 Beta supports up to 2M tokens.
Do both Anthropic: Claude Opus 4.6 (batch) and xAI: Grok 4.20 Beta support tool calling?
Anthropic: Claude Opus 4.6 (batch): yes. xAI: Grok 4.20 Beta: yes.
Compare Anthropic: Claude Opus 4.6 (batch) with other models
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