LLM Comparison
Qwen3.5-27B vs Grok 4.1 Fast
Side-by-side specs, pricing & capabilities · Updated April 2026
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 73 82.7 | |
| Family | Qwen | Grok |
| Status | Current | Current |
| Release Date | Feb 2026 | Nov 2025 |
| Context Window | 262K tokens | 2.0M tokens |
| Input Price | $0.20/M tokens | $0.20/M tokens |
| Output Price | $1.56/M tokens | $0.50/M tokens |
| Pricing Notes | — | Cache read: $0.0500/M tokens |
| Capabilities | textvisionvideocode | textvisioncode |
| Max Output | 66K tokens | 30K tokens |
| API Identifier | qwen/qwen3.5-27b | x-ai/grok-4.1-fast |
| Benchmarks | ||
| MMLU-Pro | 86.1alibaba | — |
| GPQA Diamond | 85.5alibaba | — |
| SWE-bench Verified | 72.4alibaba | — |
| MathVision | 86alibaba | — |
| TAU2-Bench | 79alibaba | — |
| IFEval | 91.5alibaba | — |
| View Qwen3.5-27B | View Grok 4.1 Fast | |
Cost Calculator
Enter your expected monthly token usage to compare costs.
| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Grok 4.1 FastCheapest | $0.20 | $0.25 | $0.45 | — |
| Qwen3.5-27B | $0.20 | $0.78 | $0.98 | +117% |
Alibaba
Qwen3.5-27B
Qwen3.5-27B is a multimodal llm from Alibaba. Supports up to 262,144 token context window. Achieves 87.5% on MMLU. Available from $0.20/M input tokens.
xAI
Grok 4.1 Fast
Grok 4.1 Fast is a multimodal llm from xAI. Supports up to 2,000,000 token context window. Available from $0.20/M input tokens.
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