GLM-4.7-Flash vs GPT-5.1 High: Specs & Benchmark Comparison

CharacteristicGLM-4.7-FlashGPT-5.1 High
CompanyZhipu AIOpenAI
Release DateJanuary 18, 2026November 11, 2025
Parameters30B
MultimodalNoYes
Context (input)128K256K
Context (output)16K128K
Input Price / 1M$0.07$2.00
Output Price / 1M$0.40$8.00
Average Score0.60.9
Benchmarks
GPQA0.80.9
AIME 20250.91.0

Visual Benchmark Comparison

GLM-4.7-Flash
GPT-5.1 High
GPQA0.8 vs 0.9
0.8
0.9
AIME 20250.9 vs 1.0
0.9
1.0

Verdict

GLM-4.7-Flash leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: GLM-4.7-Flash — 0.6, GPT-5.1 High — 0.9.

API Cost

GLM-4.7-Flash is 21.3x cheaper: input $0.07/1M vs $2.00/1M tokens.

Context Window

GPT-5.1 High supports a larger context: 256K vs 128K tokens.

Recency

GLM-4.7-Flash is newer: released 1/18/2026 vs 11/11/2025.

More About These Models

Related Comparisons

The GLM-4.7-Flash and GPT-5.1 High comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GLM-4.7-Flash or GPT-5.1 High page. See also the complete list of AI model comparisons.