Grok 4.5 vs Qwen3.8 Max: Specs & Benchmark Comparison
Grok 4.5 is developed by xAI, while Qwen3.8 Max comes from Alibaba. Grok 4.5 was released in July 2026, and Qwen3.8 Max followed a month later in August 2026. Qwen3.8 Max has a published size of about 2.4 trillion parameters; xAI has not disclosed the parameter count of Grok 4.5.
We have 4 benchmark results for Grok 4.5 and 2 benchmark results for Qwen3.8 Max, but they were measured on different benchmarks, so there is no like-for-like scoreboard.
Grok 4.5 is the cheaper API at $2 per million input tokens and $6 per million output tokens, about 25% below Qwen3.8 Max at $2.50 and $6.25. Qwen3.8 Max takes the larger context window at 1M tokens, compared with 500K for Grok 4.5. Both accept text and images as input.
| Characteristic | Grok 4.5 | Qwen3.8 Max |
|---|---|---|
| Company | xAI | Alibaba |
| Release Date | July 16, 2026 | August 2, 2026 |
| Parameters | — | 2.4T |
| Multimodal | Yes | Yes |
| Context (input) | 500K | 1.0M |
| Context (output) | — | 131K |
| Input Price / 1M | $2.00 | $2.50 |
| Output Price / 1M | $6.00 | $6.25 |
| Average Score | 76.0% | 93.0% |
Verdict
Qwen3.8 Max leads in 2 out of 4 comparison categories.
Both models show comparable average scores: Grok 4.5 — 0.8, Qwen3.8 Max — 0.9.
Grok 4.5 is 1.1x cheaper: input $2.00/1M vs $2.50/1M tokens.
Qwen3.8 Max supports a larger context: 1M vs 500K tokens.
Qwen3.8 Max is newer: released 8/2/2026 vs 7/16/2026.
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Frequently Asked Questions
Which is better for coding — Grok 4.5 or Qwen3.8 Max?
Which model is cheaper — Grok 4.5 or Qwen3.8 Max?
Which has a larger context window — Grok 4.5 or Qwen3.8 Max?
The Grok 4.5 and Qwen3.8 Max 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 Qwen3.8 Max page. See also the complete list of AI model comparisons.