Bump prompt-testing reviewer to Opus 4.7

prompt_testing/cli.py

@@ -20,6 +20,7 @@
 import click
 from dotenv import load_dotenv
 
+from app.model_costs import get_model_cost
 from prompt_testing.ce_api import CompilerExplorerClient
 from prompt_testing.enricher import TestCaseEnricher
 from prompt_testing.file_utils import load_all_test_cases
@@ -43,7 +44,7 @@ def cli(ctx, project_root):
 @click.option("--output", help="Output filename")
 @click.option("--max-concurrent", type=int, default=5)
 @click.option("--review", is_flag=True, help="Also run Opus correctness review on results")
-@click.option("--review-model", default="claude-opus-4-6", help="Model for correctness review")
+@click.option("--review-model", default="claude-opus-4-7", help="Model for correctness review")
 @click.pass_context
 def run(ctx, prompt, cases, categories, output, max_concurrent, review, review_model):
     """Run test cases and save results for review."""
@@ -208,6 +209,7 @@ async def _run_reviews(project_root: Path, results: dict, model: str) -> dict:
 
     review_cost = 0.0
     errors_found = 0
+    cost_per_input_token, cost_per_output_token = get_model_cost(model)
 
     for i, result in enumerate(successful, 1):
         case = cases_by_id.get(result["case_id"])
@@ -221,8 +223,10 @@ async def _run_reviews(project_root: Path, results: dict, model: str) -> dict:
         n_issues = len(review.get("issues", []))
         if not review.get("correct"):
             errors_found += 1
-        # Opus pricing: $15/M in, $75/M out
-        cost = review.get("reviewer_input_tokens", 0) * 15 / 1e6 + review.get("reviewer_output_tokens", 0) * 75 / 1e6
+        cost = (
+            review.get("reviewer_input_tokens", 0) * cost_per_input_token
+            + review.get("reviewer_output_tokens", 0) * cost_per_output_token
+        )
         review_cost += cost
         click.echo(f"  [{i}/{len(successful)}] {status} {result['case_id']} ({n_issues} issues, ${cost:.4f})")
 
@@ -256,7 +260,7 @@ def _print_review_summary(results: dict) -> None:
 
 @cli.command()
 @click.argument("results_file")
-@click.option("--model", default="claude-opus-4-6", help="Reviewer model")
+@click.option("--model", default="claude-opus-4-7", help="Reviewer model")
 @click.pass_context
 def review(ctx, results_file, model):
     """Run Opus correctness review on existing results."""

prompt_testing/reviewer.py

@@ -66,7 +66,7 @@
 class CorrectnessReviewer:
     """Reviews explanations for factual correctness using a powerful model."""
 
-    def __init__(self, model: str = "claude-opus-4-6"):
+    def __init__(self, model: str = "claude-opus-4-7"):
         self.model = model
         self.client = AsyncAnthropic()
 
@@ -95,10 +95,10 @@ async def review(
             explanation=explanation,
         )
 
+        # Opus 4.7+ rejects `temperature`; rely on the model's own default.
         msg = await self.client.messages.create(
             model=self.model,
             max_tokens=2048,
-            temperature=0.0,
             system=REVIEW_SYSTEM_PROMPT,
             messages=[{"role": "user", "content": user_prompt}],
         )