
Qwen3.5-Flash vs GPT-4o mini: Challenger Meets Incumbent
A detailed comparison of Qwen3.5-Flash and GPT-4o mini covering benchmarks, pricing, context windows, and ecosystem - the new open-source challenger versus OpenAI's entrenched budget API.
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A detailed comparison of Qwen3.5-Flash and GPT-4o mini covering benchmarks, pricing, context windows, and ecosystem - the new open-source challenger versus OpenAI's entrenched budget API.

Alibaba releases four Qwen 3.5 medium models - Flash, 35B-A3B, 122B-A10B, and 27B - that match or beat the previous 235B flagship at a fraction of the compute. The 35B model activates just 3 billion parameters and still outperforms Qwen3-235B-A22B.

Qwen3.5-122B-A10B is a 122B-parameter MoE model activating 10B parameters per token, narrowing the gap between medium and frontier models with top scores in GPQA Diamond (86.6), MMMU (83.9), and OCRBench (92.1). Apache 2.0 licensed.

Qwen3.5-27B is a 27B dense model that matches GPT-5-mini on SWE-bench (72.4) and posts the best coding and instruction-following scores in the Qwen 3.5 medium lineup. Apache 2.0 licensed.

Qwen3.5-35B-A3B is a 35B-parameter MoE model activating just 3B parameters per token that surpasses the previous Qwen3-235B flagship across language, vision, and agent benchmarks. Apache 2.0 licensed.

Qwen3.5-Flash is Alibaba's hosted production model with 1M context, built-in tools, and multimodal support at $0.10/M input tokens - one of the cheapest frontier-tier APIs available.

Alibaba's Qwen team releases Qwen3.5-397B-A17B, an open-weight mixture-of-experts model with native multimodal support and a hybrid attention architecture that runs 8x faster than its predecessor. Apache 2.0 licensed.

TeichAI, a four-person non-profit, generated 250 reasoning samples from Claude Opus 4.5, fine-tuned open-weight models on the result, and racked up 67,000 downloads. The legal and technical implications are more interesting than the benchmarks.

Alibaba releases Qwen 3.5, a 397-billion-parameter open-weight model that claims to outperform US frontier models at a fraction of the cost.

Alibaba releases Qwen 3.5, a 397B parameter open-source multimodal model with 256K context, Apache 2.0 license, and performance that tops Python coding and math reasoning benchmarks.

A detailed review of Alibaba's Qwen 3 model family, featuring hybrid thinking modes, 119 language support, MCP integration, and Apache 2.0 licensing.