Which is better for coding — GPT-5.1 Thinking or Qwen3.5 27B?

Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.

Which model is cheaper — GPT-5.1 Thinking or Qwen3.5 27B?

API pricing data is available on the individual model pages.

Which has a larger context window — GPT-5.1 Thinking or Qwen3.5 27B?

Context window data is available on the individual model pages.

GPT-5.1 Thinking vs Qwen3.5 27B: Specs & Benchmark Comparison

Characteristic	GPT-5.1 Thinking	Qwen3.5 27B
Company	OpenAI	Alibaba
Release Date	November 11, 2025	March 1, 2026
Parameters	—	27B
Multimodal	Yes	No
Context (input)	256K	—
Context (output)	128K	—
Input Price / 1M	$3.00	—
Output Price / 1M	$12.00	—
Average Score	0.9	0.9

Verdict

Qwen3.5 27B leads in 1 out of 2 comparison categories.

Overall Performance

Both models show comparable average scores: GPT-5.1 Thinking — 0.9, Qwen3.5 27B — 0.9.

Recency

Qwen3.5 27B is newer: released 3/1/2026 vs 11/11/2025.

More About These Models

GPT-5.1 Thinking

OpenAI — specs, benchmarks, API

Qwen3.5 27B

Alibaba — specs, benchmarks, API

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All model comparisons →

The GPT-5.1 Thinking 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 GPT-5.1 Thinking or Qwen3.5 27B page. See also the complete list of AI model comparisons.