diff --git a/HISTORY.md b/HISTORY.md
index 217c504c9..f7bf84220 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -3,11 +3,12 @@
 ### Aider v0.73.0
 
 - Full support for o3-mini: `aider --model o3-mini`
+- New `--reasoning-effort` argument: low, medium, high.
 - Improved handling of context window size limits, with better messaging and Ollama-specific guidance.
 - Added support for removing model-specific reasoning tags from responses with `remove_reasoning: tagname` model setting.
 - Auto-create parent directories when creating new files, by xqyz.
 - Support for R1 free on OpenRouter: `--model openrouter/deepseek/deepseek-r1:free`
-- Aider wrote 69% of the code in this release.
+- Aider wrote 70% of the code in this release.
 
 ### Aider v0.72.3
 
diff --git a/aider/website/_data/polyglot_leaderboard.yml b/aider/website/_data/polyglot_leaderboard.yml
index 39e741e25..422c47d6b 100644
--- a/aider/website/_data/polyglot_leaderboard.yml
+++ b/aider/website/_data/polyglot_leaderboard.yml
@@ -126,7 +126,7 @@
   date: 2024-12-21
   versions: 0.69.2.dev
   seconds_per_case: 133.2
-  total_cost: 0.0000
+  total_cost: 186.4958
 
 - dirname: 2024-12-21-20-56-21--polyglot-deepseek-diff
   test_cases: 225
@@ -491,4 +491,30 @@
   date: 2025-01-31
   versions: 0.72.4.dev
   seconds_per_case: 47.2
-  total_cost: 8.8599
\ No newline at end of file
+  total_cost: 8.8599
+
+- dirname: 2025-01-31-20-42-47--o3-mini-diff-high
+  test_cases: 224
+  model: o3-mini (high)
+  edit_format: diff
+  commit_hash: b0d58d1-dirty
+  pass_rate_1: 21.0
+  pass_rate_2: 60.4
+  pass_num_1: 47
+  pass_num_2: 136
+  percent_cases_well_formed: 93.3
+  error_outputs: 26
+  num_malformed_responses: 24
+  num_with_malformed_responses: 15
+  user_asks: 19
+  lazy_comments: 0
+  syntax_errors: 0
+  indentation_errors: 0
+  exhausted_context_windows: 1
+  test_timeouts: 7
+  total_tests: 225
+  command: aider --model openai/o3-mini
+  date: 2025-01-31
+  versions: 0.72.4.dev
+  seconds_per_case: 124.6
+  total_cost: 18.1584
\ No newline at end of file