Claude Opus 4.7 vs Grok 4
Claude Opus 4.7 (2026) and Grok 4 (2026) are frontier-tier reasoning models from Anthropic and xAI. Claude Opus 4.7 ships a 1M-token context window, while Grok 4 ships a 256k-token context window. On SWE-bench Verified, Claude Opus 4.7 leads by 10.9 pts. On pricing, Grok 4 costs $3/1M input tokens versus $5/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Grok 4 is ~67% cheaper at $3/1M; pay for Claude Opus 4.7 only for coding workflow support.
Specs
| Released | 2026-04-16 | 2026-03-01 |
| Context window | 1M | 256k |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Proprietary | Proprietary |
| Knowledge cutoff | 2026-01 | - |
Pricing and availability
| Claude Opus 4.7 | Grok 4 | |
|---|---|---|
| Input price | $5/1M tokens | $3/1M tokens |
| Output price | $25/1M tokens | $15/1M tokens |
| Providers |
Capabilities
| Claude Opus 4.7 | Grok 4 | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
| Benchmark | Claude Opus 4.7 | Grok 4 |
|---|---|---|
| SWE-bench Verified | 87.6 | 76.7 |
Deep dive
On shared benchmark coverage, SWE-bench Verified has Claude Opus 4.7 at 87.6 and Grok 4 at 76.7, with Claude Opus 4.7 ahead by 10.9 points. The largest visible gap is 10.9 points on SWE-bench Verified, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on vision: Claude Opus 4.7, function calling: Claude Opus 4.7, and tool use: Claude Opus 4.7. Both models share multimodal input, reasoning mode, structured outputs, and code execution, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Claude Opus 4.7 lists $5/1M input and $25/1M output tokens, while Grok 4 lists $3/1M input and $15/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Grok 4 lower by about $4.4 per million blended tokens. Availability is 5 providers versus 3, so concentration risk also matters.
Choose Claude Opus 4.7 when coding workflow support, larger context windows, and broader provider choice are central to the workload. Choose Grok 4 when coding workflow support and lower input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, Claude Opus 4.7 or Grok 4?
Claude Opus 4.7 supports 1M tokens, while Grok 4 supports 256k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Claude Opus 4.7 or Grok 4?
Grok 4 is cheaper on tracked token pricing. Claude Opus 4.7 costs $5/1M input and $25/1M output tokens. Grok 4 costs $3/1M input and $15/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Claude Opus 4.7 or Grok 4 open source?
Claude Opus 4.7 is listed under Proprietary. Grok 4 is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Claude Opus 4.7 or Grok 4?
Claude Opus 4.7 has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for multimodal input, Claude Opus 4.7 or Grok 4?
Both Claude Opus 4.7 and Grok 4 expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Claude Opus 4.7 and Grok 4?
Claude Opus 4.7 is available on Anthropic, AWS Bedrock, GCP Vertex AI, Microsoft Foundry, and OpenRouter. Grok 4 is available on Microsoft Foundry, OpenRouter, and Replicate API. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.