Grok 4.5 vs Qwen3.5 27B: Specs & Benchmark Comparison
Grok 4.5 is developed by xAI, while Qwen3.5 27B comes from Alibaba. Qwen3.5 27B was released in March 2026, and Grok 4.5 followed 4 months later in July 2026. Qwen3.5 27B has a published size of about 27 billion parameters; xAI has not disclosed the parameter count of Grok 4.5.
We have 15 benchmark results for Grok 4.5 and 81 benchmark results for Qwen3.5 27B, but they overlap on a single test: GPQA, where Grok 4.5 scores 93.0% against 85.5%.
Grok 4.5 is available through an API at $2 per million input tokens with a 500K-token context window. We do not track a hosted API for Qwen3.5 27B, so pricing and context cannot be compared directly.
| Characteristic | Grok 4.5 | Qwen3.5 27B |
|---|---|---|
| Company | xAI | Alibaba |
| Release Date | July 16, 2026 | March 1, 2026 |
| Parameters | — | 27B |
| Multimodal | Yes | No |
| Context (input) | 500K | — |
| Input Price / 1M | $2.00 | — |
| Output Price / 1M | $6.00 | — |
| Average Score | 52.9% | 70.3% |
| Benchmarks | ||
| GPQA | 93.0% | 85.5% |
Visual Benchmark Comparison
Verdict
Grok 4.5 leads in 1 out of 2 comparison categories.
Both models show comparable average scores: Grok 4.5 — 0.5, Qwen3.5 27B — 0.7.
Grok 4.5 is newer: released 7/16/2026 vs 3/1/2026.
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Frequently Asked Questions
Which is better for coding — Grok 4.5 or Qwen3.5 27B?
Which model is cheaper — Grok 4.5 or Qwen3.5 27B?
Which has a larger context window — Grok 4.5 or Qwen3.5 27B?
The Grok 4.5 and Qwen3.5 27B comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Grok 4.5 or Qwen3.5 27B page. See also the complete list of AI model comparisons.