Qwen: Qwen3.8 27B vs SpaceXAI: Grok 4.5

For a sample job of 1 million input tokens and 250,000 output tokens, Qwen3.8 27B costs $1.17 and Grok 4.5 costs $3.50, so Qwen3.8 27B is about 3.0 times cheaper for the same work.

Qwen3.8 27B reads up to 1,000,000 tokens at once, roughly 1,500 pages of text, against about 750 pages for Grok 4.5.

Only Qwen3.8 27B offers video input.

On our blended benchmark score Grok 4.5 leads 65.0 to 55.6.

Across the 20 tasks where they differ, Qwen3.8 27B scores higher on 7 (Code Completion, Code Documentation, Regex Writing and others), Grok 4.5 on 13 (SQL Generation, Code Review, Code Refactoring and others).

Qwen3.8 27B was released in August 2026 and Grok 4.5 in July 2026.

Pick Qwen3.8 27B if you need lower cost, long documents or video input; pick Grok 4.5 if you need benchmark performance.

Costs use current list prices per million tokens; page counts assume about 0.75 words per token and 500 words per page.