GPT-4o vs Qwen3 235B

GPT-4o gets grounding rules; Qwen3 gets thinking mode toggles and English enforcement for its multilingual nature.

GPT-4o

OpenAI · openai

Quality

800ms

Speed

+8%

Gain

Best for

Enterprise reliability
Consistent JSON output
Broad general knowledge

Adaptations

Grounding rules
JSON reinforcement
Reasoning hints

View GPT-4o details →

Qwen3 235B

Alibaba · qwen

Quality

1500ms

Speed

+15%

Gain

Best for

Open-weight deployment
Thinking mode control
Chinese/multilingual content

Adaptations

Thinking mode control
English enforcement

View Qwen3 235B details →

Our Take

GPT-4o is the safe enterprise choice with consistent behavior. Qwen3 offers higher ceiling performance on reasoning tasks thanks to its thinking mode, but requires more careful prompt engineering. Refrase bridges this gap by automatically applying the right adaptations for each model.

Example Prompt

Generate optimized SQL queries from this natural language description. Include appropriate JOINs and explain your design decisions.

Try Both Models