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OpenAI: GPT-6.1 Sol Pro vs Tencent: Hy4 preview

Tencent: Hy4 preview is 3.7× cheaper for the sample workload; OpenAI: GPT-6.1 Sol Pro has the larger context window.

MetricOpenAI: GPT-6.1 Sol ProTencent: Hy4 preview
Model IDopenai/gpt-6.1-sol-protencent/hy4-preview
Prompt price$2.00 / 1M tokens$0.7506 / 1M tokens
Completion price$10.00 / 1M tokens$2.2509 / 1M tokens
Context1,050,000 tokens1,048,576 tokens
Tool calling✓✓
Structured outputs✓✓
Reasoning✓✓
Response format✓✓
Web search––
Input modalitiesfile, image, texttext
Output modalitiestexttext
Added2026-09-292026-08-28

Sample workload

Chat app: 1,000 prompt + 500 completion tokens × 100 requests per day.

CostOpenAI: GPT-6.1 Sol ProTencent: Hy4 preview
Per day$0.70$0.19
Per 30 days$21.00$5.63

Difference: $0.51 per day and $15.37 per 30 days.

Data updated 2026-11-03