diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 4287934fc..9dbcd689c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -117,4 +117,4 @@ Provider bootstrap, Runtime images and Harness adapters must agree on these name
## Branding
-Use OpenAgentCore for public project branding. The canonical mark is `docs/assets/openagentcore-logo.svg`; Web uses its outline with cropped transparent margins, theme-aware favicon colors and dark-surface inversion. The README wordmark is `docs/assets/openagentcore-wordmark-light.svg` with a dark variant, and `docs/assets/og-image.png` is the social preview. The architecture diagram that README and the website show, `docs/assets/architecture.svg` and `architecture-dark.svg`, is generated by `scripts/generate-architecture-diagram.py`; change the script and run it again. The `example/parsar/` example keeps its own name, logo and favicon.
+Use OpenAgentCore for public project branding. The canonical mark is `docs/assets/openagentcore-logo.svg`; Web uses its outline with cropped transparent margins, theme-aware favicon colors and dark-surface inversion. The README banner is `docs/assets/openagentcore-banner.webp`, and `docs/assets/og-image.png` is the social preview. The architecture diagram that README and the website show, `docs/assets/architecture.svg` and `architecture-dark.svg`, is generated by `scripts/generate-architecture-diagram.py`; change the script and run it again. The `example/parsar/` example keeps its own name, logo and favicon.
diff --git a/README.md b/README.md
index e37a32794..0170d3a94 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,6 @@
-
-
-
-
+
The OpenAI Agents API, open source and self-hosted. Run Codex, Claude Code or MiniMax Code on your own machines with your own models, through the official OpenAI SDK.
@@ -15,7 +12,7 @@ The OpenAI Agents API, open source and self-hosted. Run Codex, Claude Code or Mi
-
+
- **Same API as OpenAI.** Set `OPENAI_BASE_URL` and the [official OpenAI SDK](https://developers.openai.com/api/docs/libraries), or plain HTTP, works unchanged.
- **Your agent, your model.** Each Session runs Codex, Claude Code or MiniMax Code natively, as it runs on your machine, with the model provider you configure. See [Harness capabilities](https://openagentcore.dev/contracts/agents-api/harness-capabilities).
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 2282ecfac..a3d62b01b 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -1,9 +1,6 @@