Add Artificial Analysis evaluations for gpt-oss-20b

This commit adds structured evaluation results to the model card. The results are formatted using the model-index specification and will be displayed in the model card's evaluation widget.

README.md

@@ -4,6 +4,57 @@ pipeline_tag: text-generation
 library_name: transformers
 tags:
 - vllm
+model-index:
+- name: gpt-oss-20b
+  results:
+  - task:
+      type: evaluation
+    dataset:
+      name: Artificial Analysis Benchmarks
+      type: artificial_analysis
+    metrics:
+    - name: Artificial Analysis Intelligence Index
+      type: artificial_analysis_intelligence_index
+      value: 52.1
+    - name: Artificial Analysis Coding Index
+      type: artificial_analysis_coding_index
+      value: 40.7
+    - name: Artificial Analysis Math Index
+      type: artificial_analysis_math_index
+      value: 89.3
+    - name: Mmlu Pro
+      type: mmlu_pro
+      value: 0.748
+    - name: Gpqa
+      type: gpqa
+      value: 0.688
+    - name: Hle
+      type: hle
+      value: 0.098
+    - name: Livecodebench
+      type: livecodebench
+      value: 0.777
+    - name: Scicode
+      type: scicode
+      value: 0.344
+    - name: Aime 25
+      type: aime_25
+      value: 0.893
+    - name: Ifbench
+      type: ifbench
+      value: 0.651
+    - name: Lcr
+      type: lcr
+      value: 0.307
+    - name: Terminalbench Hard
+      type: terminalbench_hard
+      value: 0.099
+    - name: Tau2
+      type: tau2
+      value: 0.602
+    source:
+      name: Artificial Analysis API
+      url: https://artificialanalysis.ai
 ---
 
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