diff --git a/src/backends/cl/ClBackendModelContext.hpp b/src/backends/cl/ClBackendModelContext.hpp
index 59f7f8f..577649a 100644
--- a/src/backends/cl/ClBackendModelContext.hpp
+++ b/src/backends/cl/ClBackendModelContext.hpp
@@ -9,6 +9,11 @@
 namespace armnn
 {
 
+/// The ClBackendModelContext is used to pass in CL specific backend ModelOptions. The supported backend ModelOptions
+/// are:
+///  - "FastMathEnabled"\n
+///    Using the fast_math flag can lead to performance improvements in fp32 and fp16 layers but may result in\n
+///    results with reduced or different precision. The fast_math flag will not have any effect on int8 performance.
 class ClBackendModelContext : public IBackendModelContext
 {
 public:
diff --git a/src/backends/neon/NeonBackendModelContext.hpp b/src/backends/neon/NeonBackendModelContext.hpp
index 938d8af..430ae45 100644
--- a/src/backends/neon/NeonBackendModelContext.hpp
+++ b/src/backends/neon/NeonBackendModelContext.hpp
@@ -9,6 +9,11 @@
 namespace armnn
 {
 
+/// The NeonBackendModelContext is used to pass in Neon specific backend ModelOptions. The supported backend
+/// ModelOptions are:
+///  - "FastMathEnabled"\n
+///    Using the fast_math flag can lead to performance improvements in fp32 and fp16 layers but may result in\n
+///    results with reduced or different precision. The fast_math flag will not have any effect on int8 performance.
 class NeonBackendModelContext : public IBackendModelContext
 {
 public: