diff --git a/src/backends/onnx.js b/src/backends/onnx.js
index b5923a596..b15a3e8a8 100644
--- a/src/backends/onnx.js
+++ b/src/backends/onnx.js
@@ -46,6 +46,9 @@ const DEVICE_TO_EXECUTION_PROVIDER_MAPPING = Object.freeze({
     'webnn-cpu': { name: 'webnn', deviceType: 'cpu' }, // WebNN CPU
 });
 
+/** @type {Array<'verbose' | 'info' | 'warning' | 'error' | 'fatal'>} */
+const LOG_LEVELS = ['verbose', 'info', 'warning', 'error', 'fatal'];
+
 /**
  * The list of supported devices, sorted by priority/performance.
  * @type {import("../utils/devices.js").DeviceType[]}
@@ -149,6 +152,19 @@ let webInitChain = Promise.resolve();
  * @returns {Promise<import('onnxruntime-common').InferenceSession & { config: Object}>} The ONNX inference session.
  */
 export async function createInferenceSession(buffer_or_path, session_options, session_config) {
+
+    /** @type {0|1|2|3|4} */
+    const logSeverityLevel =
+        typeof session_options.logSeverityLevel !== 'number' ||
+        session_options.logSeverityLevel < 0 ||
+        session_options.logSeverityLevel > 4
+            ? 4
+            : session_options.logSeverityLevel;
+
+    ONNX_WEB.env.logLevel = LOG_LEVELS[logSeverityLevel];
+
+    session_options = { ...session_options, logSeverityLevel };
+
     const load = () => InferenceSession.create(buffer_or_path, session_options);
     const session = await (IS_WEB_ENV ? (webInitChain = webInitChain.then(load)) : load());
     session.config = session_config;
diff --git a/src/models.js b/src/models.js
index fc3eed8ef..c77c488ec 100644
--- a/src/models.js
+++ b/src/models.js
@@ -241,6 +241,8 @@ async function getSession(pretrained_model_name_or_path, fileName, options, is_d
 
     // Overwrite `executionProviders` if not specified
     session_options.executionProviders ??= executionProviders;
+    // Set `logSeverityLevel` to 4 (fatal) if not specified
+    session_options.logSeverityLevel ??= 4;
 
     // Overwrite `freeDimensionOverrides` if specified in config and not set in session options
     const free_dimension_overrides = custom_config.free_dimension_overrides;