diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2cc6b67b..18875859 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,25 @@
-## [1.49.0](https://github.com/ScrapeGraphAI/Scrapegraph-ai/compare/v1.48.0...v1.49.0) (2025-04-29)
+## [1.50.0-beta.1](https://github.com/ScrapeGraphAI/Scrapegraph-ai/compare/v1.49.0...v1.50.0-beta.1) (2025-04-29)
 
 
 ### Features
 
+* add new openai models ([97ee48c](https://github.com/ScrapeGraphAI/Scrapegraph-ai/commit/97ee48cb52038ec746d8ec78de029c8dde6a7753))
+
+
+### CI
+
+* **release:** 1.49.0-beta.1 [skip ci] ([228920c](https://github.com/ScrapeGraphAI/Scrapegraph-ai/commit/228920cf10e0861ada99432f34fca2f5b845984f))
+
+## [1.49.0-beta.1](https://github.com/ScrapeGraphAI/Scrapegraph-ai/compare/v1.48.0...v1.49.0-beta.1) (2025-04-29)
+
+
+### Features
+
+* add new openai models ([97ee48c](https://github.com/ScrapeGraphAI/Scrapegraph-ai/commit/97ee48cb52038ec746d8ec78de029c8dde6a7753))
+
 * enhance error handling and validation across utility modules ([b552aa9](https://github.com/ScrapeGraphAI/Scrapegraph-ai/commit/b552aa902fb4f5052468148851434062d8e74b94))
 
+
 ## [1.48.0](https://github.com/ScrapeGraphAI/Scrapegraph-ai/compare/v1.47.0...v1.48.0) (2025-04-15)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index 10768569..b2fb6dee 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "scrapegraphai"
 
-version = "1.49.0"
+version = "1.50.0b1"
 
 
 description = "A web scraping library based on LangChain which uses LLM and direct graph logic to create scraping pipelines."
diff --git a/scrapegraphai/helpers/models_tokens.py b/scrapegraphai/helpers/models_tokens.py
index b537b072..ec8e935d 100644
--- a/scrapegraphai/helpers/models_tokens.py
+++ b/scrapegraphai/helpers/models_tokens.py
@@ -31,6 +31,8 @@
         "gpt-4.5-preview": 128000,
         "o1-preview": 128000,
         "o1-mini": 128000,
+        "o1": 128000,
+        "gpt-4.5-preview": 128000,
         "o3-mini": 200000,
     },
     "azure_openai": {