Set default model to GPT-5.2 per PR benchmark, newer knowledge cutoff

[PeterDaveHello]

User description

Update default model to GPT-5.2 in pr_agent/settings/configuration.toml.

Benchmark reference:

• docs/docs/pr_benchmark/index.md
• dac6eff
• 4ea6653

Knowledge cut-off date:

• GPT-5: 2024-09-30 (https://platform.openai.com/docs/models/gpt-5)
• GPT-5.2: 2025-08-31 (https://platform.openai.com/docs/models/gpt-5.2)

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PR Type

Enhancement

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Description

• Update default model from gpt-5-2025-08-07 to gpt-5.2-2025-12-11

• Leverage newer knowledge cutoff date (2025-08-31 vs 2024-09-30)

• Align with PR benchmark performance improvements

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Diagram Walkthrough

flowchart LR
  A["gpt-5-2025-08-07<br/>Knowledge: 2024-09-30"] -- "upgrade" --> B["gpt-5.2-2025-12-11<br/>Knowledge: 2025-08-31"]
  B -- "improves" --> C["PR benchmark performance"]

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File Walkthrough

	Relevant files
Configuration changes	configuration.toml Update default model to GPT-5.2                                                    pr_agent/settings/configuration.toml Changed default model parameter from gpt-5-2025-08-07 to gpt-5.2-2025-12-11 Enables access to newer knowledge cutoff date (2025-08-31) Aligns with PR benchmark recommendations for improved performance +1/-1

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[ofir-frd]

Great update.
Thanks!

For all users' context, it's worth mentioning that while GPT-5.2 is better, it is more expensive than GPT-5.

https://platform.openai.com/docs/pricing