GLM-4.7-Flash vs GPT-5.1 Instant: Specs & Benchmark Comparison
| Characteristic | GLM-4.7-Flash | GPT-5.1 Instant |
|---|---|---|
| Company | Zhipu AI | OpenAI |
| Release Date | January 18, 2026 | November 11, 2025 |
| Parameters | 30B | — |
| Multimodal | No | Yes |
| Context (input) | 128K | 256K |
| Context (output) | 16K | 32K |
| Input Price / 1M | $0.07 | $0.30 |
| Output Price / 1M | $0.40 | $1.20 |
| Average Score | 0.6 | 0.9 |
| Benchmarks | ||
| SWE-Bench Verified | 0.6 | 0.8 |
| GPQA | 0.8 | 0.9 |
| AIME 2025 | 0.9 | 0.9 |
Visual Benchmark Comparison
GLM-4.7-Flash
GPT-5.1 Instant
SWE-Bench Verified0.6 vs 0.8
0.6
0.8
GPQA0.8 vs 0.9
0.8
0.9
AIME 20250.9 vs 0.9
0.9
0.9
Verdict
GLM-4.7-Flash leads in 2 out of 5 comparison categories.
Overall Performance
Both models show comparable average scores: GLM-4.7-Flash — 0.6, GPT-5.1 Instant — 0.9.
Programming
On SWE-Bench, both models are nearly equal: GLM-4.7-Flash — 0.6, GPT-5.1 Instant — 0.8.
API Cost
GLM-4.7-Flash is 3.2x cheaper: input $0.07/1M vs $0.30/1M tokens.
Context Window
GPT-5.1 Instant 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 Instant 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 Instant page. See also the complete list of AI model comparisons.