diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9e37f62..689484e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,15 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [6.7.3] - 2026-08-04
+
+### Changed
+
+- **Axon Eido 3 Flash is now paid at $0.5/M in and $1.5/M out.** The built-in
+  registry no longer marks `axon-eido-3-flash` as free; `inputPrice` and
+  `outputPrice` are updated to match the new MatterAI API pricing. Flash usage
+  now accrues session cost like the other Axon models.
+
 ## [6.7.2] - 2026-08-02
 
 ### Changed
diff --git a/README.md b/README.md
index 6fff3ec..e1953a2 100644
--- a/README.md
+++ b/README.md
@@ -188,7 +188,7 @@ sessions.
 | `axon-eido-3-code-pro-400k`    | 400k    | 64k        | $3/M in · $9/M out     |
 | `axon-eido-3-code-mini-200k`   | 200k    | 64k        | $1.5/M in · $4.5/M out |
 | `axon-eido-3-code-mini-400k`   | 400k    | 64k        | $1.5/M in · $4.5/M out |
-| `axon-eido-3-flash`            | 200k    | 64k        | free                   |
+| `axon-eido-3-flash`            | 200k    | 64k        | $0.5/M in · $1.5/M out |
 
 `axon-eido-3-code-mini-200k` is the default. The context suffix controls
 OrbCode's local context window; requests still send the underlying base model ID
diff --git a/package.json b/package.json
index af00d46..0d047e3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@matterailab/orbcode",
-  "version": "6.7.2",
+  "version": "6.7.3",
   "description": "OrbCode CLI — agentic coding in your terminal, powered by Axon models by MatterAI",
   "type": "module",
   "bin": {
diff --git a/src/api/models.ts b/src/api/models.ts
index e353467..3d6848d 100644
--- a/src/api/models.ts
+++ b/src/api/models.ts
@@ -149,9 +149,9 @@ export const BUILTIN_AXON_MODELS: Record<string, AxonModel> = {
     contextWindow: 200000,
     maxOutputTokens: 64000,
     supportsImages: true,
-    inputPrice: 0.0,
-    outputPrice: 0.0,
-    free: true,
+    inputPrice: 0.0000005,
+    outputPrice: 0.0000015,
+    free: false,
   },
   "axon-eido-3-code-pro-200k": {
     id: "axon-eido-3-code-pro-200k",