Claude Opus 4.7 vs Grok 3
Claude Opus 4.7 vs Grok 3: Grok 3 is cheaper for input-heavy usage ($3.00/M vs $5.00/M input tokens), while Claude Opus 4.7 is better for long-context tasks (1,000,000 tokens).
Direct answer: choose Grok 3 for lower token spend and choose Claude Opus 4.7 when your workload needs longer context.
Common pricing searches covered on this page: Claude Opus 4.7 vs Grok 3 • Claude Opus 4.7 vs Grok 3 pricing • Claude Opus 4.7 vs Grok 3 API pricing and opus 4 7 vs grok 3 pricing.
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
Claude Opus 4.7
Grok 3
Cost Differences
Grok 3 costs less than Claude Opus 4.7
Quick Recommendation
Winner for direct API pricing: Grok 3. At the default workload, Grok 3 saves about $21.00/month ($255.50/year) versus Claude Opus 4.7.
Feature Comparison
| Feature | Claude Opus 4.7 | Grok 3 |
|---|---|---|
| Provider | Anthropic | xAI |
| Input Price | $5.00/1M tokens | $3.00/1M tokens |
| Output Price | $25.00/1M tokens | $15.00/1M tokens |
| Context Window | 1,000,000 tokens | 131,072 tokens |
| Max Output | 128,000 tokens | 131,072 tokens |
| Category | flagship | flagship |
| Capabilities | textvisionreasoningcode | textvisionreasoningcode |
| Release Date | 4/16/2026 | 2/17/2025 |
Claude Opus 4.7 vs Grok 3: Which Should You Choose?
Choosing between Claude Opus 4.7 and Grok 3 depends on your priorities: cost efficiency, context length, or raw capability. Grok 3 is the more affordable option at $3.00/1M input tokens — 40% cheaper than Claude Opus 4.7. Meanwhile, Claude Opus 4.7 offers a significantly larger context window at 1,000,000 tokens vs 131,072 for Grok 3.
These models come from different providers — Anthropic and xAI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with Anthropic, switching to xAIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
Both models are in the flagship category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: Grok 3 would save you roughly $2,100.00/month compared to Claude Opus 4.7. For startups and indie developers, that difference can be significant.
Output costs matter too. Claude Opus 4.7 charges $25.00/1M output tokens vs $15.00 for Grok 3. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Grok 3 has the edge here at $15.00/1M output tokens.
Multimodal capabilities: Both models support vision (image understanding), so you can send images alongside text prompts with either option.
Best Use Cases
Choose Claude Opus 4.7 when:
- • You need a larger context window (1,000,000 tokens)
- • You're already using Anthropic's API ecosystem
Choose Grok 3 when:
- • Budget is a primary concern
- • You need longer outputs (up to 131,072 tokens)
- • You're already using xAI's API ecosystem
Pros and Caveats at a Glance
Claude Opus 4.7
- • Input pricing: $5.00/M tokens
- • Output pricing: $25.00/M tokens
- • Context window: 1,000,000 tokens
- • Max output: 128,000 tokens
Watch out for
- • Higher input cost than Grok 3
- • Higher output cost than Grok 3
Grok 3
- • Input pricing: $3.00/M tokens
- • Output pricing: $15.00/M tokens
- • Context window: 131,072 tokens
- • Max output: 131,072 tokens
Watch out for
- • Smaller context window than Claude Opus 4.7
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
Claude Opus 4.7 (Anthropic)
Grok 3 (xAI)
Start using Claude Opus 4.7 today
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Sign Up for xAI →Frequently Asked Questions
Which is cheaper, Claude Opus 4.7 or Grok 3?▼
What is the context window difference between Claude Opus 4.7 and Grok 3?▼
Which model is better for AI Agent / Agentic Workflows?▼
Which model has better overall pricing for heavy usage?▼
Where can I compare Anthropic and xAI API pricing beyond this model matchup?▼
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