Add failed post for file posts/2026/retry-697_2026-06-09-llm-agents-rnaseq.md from PR 698 (#699)

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posts/2026/retry-698_retry-697_2026-06-09-llm-agents-rnaseq.md

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+---
+media:
+- linkedin-galaxyproject
+hashtags:
+  linkedin-galaxyproject:
+  - UseGalaxy
+  - RNAseq
+  - AI
+  - LLM
+  - Bioinformatics
+images:
+- url: https://galaxyproject.org/images/news/2026-06-09-llm-agents-reanalyze-rnaseq/scf1-across-attempts.png
+  alt_text: SCF1 expression across eight LLM agent attempts to reproduce a Candida
+    auris RNA-seq analysis in Galaxy.
+- url: https://raw.githubusercontent.com/nekrut/galaxy-social/6876fd622c58a369f06b48500472e05298c7e984/posts/images/2026-06-09-llm-cost-spread.png
+  alt_text: 'Panel B: lollipop chart of LLM API cost per completing run, spanning
+    ~47x from DeepSeek ($2.82) to Opus ($131.83), while all reach the same answer.'
+---
+Eight frontier LLMs, one RNA-seq dataset. We had them reproduce a published *Candida auris* analysis by using Orbit to drive Galaxy.
+
+Six models independently replicated the original *SCF1* downregulation finding—while their API costs varied 47× ($2.82–$131.83).
+
+Read what we learned: https://galaxyproject.org/news/2026-06-09-llm-agents-reanalyze-rnaseq/