add gpt-image-1 section

Author: PatrickFarley

articles/ai-services/openai/quotas-limits.md

@@ -206,6 +206,18 @@ The rate limits for each `gpt-4o` audio model deployment are 100 K TPM and 1 K R
 |`gpt-4o-mini-audio-preview` | Default | 2 M | 1 K |
 |`gpt-4o-mini-realtime-preview` | Default | 800 K | 1 K |
 
+M = million | K = thousand
+
+## GPT-image-1 rate limits 
+
+### GPT0-image-1 global standard
+
+| Model|Tier| Quota Limit in tokens per minute (TPM) | Requests per minute |
+|---|---|:---:|:---:|
+|`gpt-image-1`|Enterprise agreement | N/A | 20 |
+|`gpt-image-1` |Default | N/A | 6 |
+
+
 M = million | K = thousand
 
 ## Usage tiers