diff --git a/README.md b/README.md
index 407a5e9..22394fc 100644
--- a/README.md
+++ b/README.md
@@ -355,6 +355,22 @@ PR-AF is one example of a larger AgentField ecosystem for building autonomous, a
 * **[SWE-AF](http://www.agentfield.ai/github/swe-af)**: autonomous software factory for production ready PR
 * **[SEC-AF](http://www.agentfield.ai/github/sec-af)**: autonomous security factory for code security review, vulnerability investigation, and evidence-grounded remediation.
 
+## New from AgentField: CodeAF
+
+<a href="https://agentfield.ai/github/codeaf/?utm_source=github-readme&utm_campaign=pr-af-readme&utm_id=pr-af-readme-codeaf-repo">
+  <img src="https://raw.githubusercontent.com/Agent-Field/CodeAF/dev/assets/readme/benchmark-deepswe.webp" alt="First on DeepSWE: senior-dev, CodeAF's developer subharness, solved the most tasks (54.9%) at the lowest cost per solved task (1x). Every other harness solved less and paid more per solve: mini-swe-agent 1.9x, codex 2.1x, pi 2.4x, claude-code 3.4x, omp, kilo and opencode about 4.5x, muse-code 11.3x, deepseek-harness 26.6x." width="100%">
+</a>
+
+**[CodeAF](https://agentfield.ai/github/codeaf/?utm_source=github-readme&utm_campaign=pr-af-readme&utm_id=pr-af-readme-codeaf-repo)** is our new open-source coding harness,
+built for open models: frontier-grade coding at a fraction of the cost. It ranked
+**#1 on DeepSWE** out of ten coding harnesses on the same model (DeepSeek V4 Flash),
+ahead of Claude Code, Codex and OpenCode, at the lowest cost per solved issue.
+One Go binary, Apache 2.0.
+
+PR-AF also ships inside CodeAF as its `review` subharness.
+
+[Try CodeAF →](https://agentfield.ai/github/codeaf/?utm_source=github-readme&utm_campaign=pr-af-readme&utm_id=pr-af-readme-codeaf-repo) · [See the benchmark →](https://agentfield.ai/github/codeaf/?utm_source=github-readme&utm_campaign=pr-af-readme&utm_id=pr-af-readme-codeaf-benchmark#benchmarks)
+
 ## From the AgentField Blog
 
 ### [How an AI-Native Engineering Team Does Code Review](https://www.agentfield.ai/blog/ai-native-code-review?utm_source=github-readme&utm_campaign=pr-af-readme&utm_id=pr-af-readme-blog-ai-native-code-review)