GPT-5.1 High vs Qwen3.8 Max: Specs & Benchmark Comparison
GPT-5.1 High is developed by OpenAI, while Qwen3.8 Max comes from Alibaba. GPT-5.1 High was released in November 2025, and Qwen3.8 Max followed 9 months later in August 2026. Qwen3.8 Max has a published size of about 2.4 trillion parameters; OpenAI has not disclosed the parameter count of GPT-5.1 High.
We have 2 benchmark results for GPT-5.1 High and 42 benchmark results for Qwen3.8 Max, but they overlap on a single test: GPQA, where Qwen3.8 Max scores 92.6% against 88.0%.
GPT-5.1 High is the cheaper API at $2 per million input tokens and $8 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 256K for GPT-5.1 High. Both accept text and images as input.
| Characteristic | GPT-5.1 High | Qwen3.8 Max |
|---|---|---|
| Company | OpenAI | Alibaba |
| Release Date | November 11, 2025 | August 2, 2026 |
| Parameters | — | 2.4T |
| Multimodal | Yes | Yes |
| Context (input) | 256K | 1.0M |
| Context (output) | 128K | 131K |
| Input Price / 1M | $2.00 | $2.50 |
| Output Price / 1M | $8.00 | $6.25 |
| Average Score | 94.0% | 71.0% |
| Benchmarks | ||
| GPQA | 88.0% | 92.6% |
Visual Benchmark Comparison
Verdict
Qwen3.8 Max leads in 3 out of 4 comparison categories.
Both models show comparable average scores: GPT-5.1 High — 0.9, Qwen3.8 Max — 0.7.
Qwen3.8 Max is 1.1x cheaper: input $2.50/1M vs $2.00/1M tokens.
Qwen3.8 Max supports a larger context: 1M vs 256K tokens.
Qwen3.8 Max is newer: released 8/2/2026 vs 11/11/2025.
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Frequently Asked Questions
Which is better for coding — GPT-5.1 High or Qwen3.8 Max?
Which model is cheaper — GPT-5.1 High or Qwen3.8 Max?
Which has a larger context window — GPT-5.1 High or Qwen3.8 Max?
The GPT-5.1 High 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 GPT-5.1 High or Qwen3.8 Max page. See also the complete list of AI model comparisons.