$ diff claude-sonnet-5-5 grok-4-7
Claude Sonnet 5.5 vs Grok 4.7
Values come from Claude Sonnet 5.5 and Grok 4.7, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
AnthropicClaude Sonnet 5.5
- context
- 1M
- weights
- closed
- $/M in
- $2
- $/M out
- $10
- context
- 500K
- weights
- —
- $/M in
- $2
- $/M out
- $6
What actually differs
- Context window
- Claude Sonnet 5.5 takes 1M against 500K — 2× more room in a single request.
- Output price
- Grok 4.7 at $6/M against $10/M — 1.7× cheaper to generate. Output dominates the bill on most agentic workloads, where the model writes far more than it reads.
- Recency
- Claude Sonnet 5.5 shipped 7 days after Grok 4.7 (2026-09-28 vs 2026-09-21).
Full spec
| Attribute | Claude Sonnet 5.5 | Grok 4.7 |
|---|---|---|
| Developer | Anthropic | xAI |
| Released | 2026-09-28 | 2026-09-21 |
| Context window | 1M tokens | 500K |
| Pricing | $2/M input · $10/M output · cache reads 10% of base input | $2/M input · $0.50/M cached input · $6/M output (prompts ≤200K); $4/M · $1/M · $12/M above 200K |
| License | proprietary (API-only; no weight release) | not recorded |
| Availability | Claude apps, Claude API as `claude-sonnet-5-5`, Amazon Bedrock, Google Cloud Vertex AI, Microsoft Foundry, Claude Platform on AWS | Grok API, Cursor, Grok Build, OpenRouter, Vercel, Cloudflare |