[CodexVeritas]

Summary

OpenAI retires gpt-4o, gpt-4o-mini, gpt-4.1 and gpt-4.1-mini on Jan 14th 2027. This replaces them in library defaults, tools, the current template's examples, and the README. Bot definitions in run_bots.py and historical templates/experiments are unchanged.

ForecastBot._llm_config_defaults (by key route)

Purpose	OpenAI	OpenRouter	Anthropic	Metaculus proxy
default	gpt-6-sol (was gpt-4o)	openrouter/openai/gpt-6-sol	anthropic/claude-sonnet-5-5 (was claude-3-7-sonnet-latest)	metaculus/gpt-6-sol
summarizer / parser	gpt-6-luna (was gpt-4o-mini)	openrouter/anthropic/claude-haiku-5.5	anthropic/claude-haiku-5-5 (was claude-3-5-sonnet-20241022)	metaculus/gpt-6-luna
researcher	openai/gpt-5-search-api (was gpt-4o-search-preview)	openrouter/perplexity/sonar-pro (gpt-4o-search-preview is no longer listed on OpenRouter)	unchanged	metaculus/gpt-5-search-api

gpt-6 models are created with temperature=None since they reject temperature.

Other changes

• GeneralLlm default timeout table: added gpt-6 → 120s (same as gpt-5); without it the new defaults would fall back to 60s
• MainBot summarizer, SmartSearcher, DataAnalyzer, TopicGenerator, intervention-testing policy agent and resolver defaults
• Chat and CSV agent model pickers: openai/gpt-4.1 + gpt-4o replaced by openai/gpt-6-sol
• template_bot_2026_fall.py example llms (and example timeout 40 → 160s for a reasoning model)
• template_bot_2026_fall.py EXAMPLE_QUESTIONS now use bot-testing-area questions, and a date question was added
• README.md / README.ipynb examples

Testing

• Unit tests pass
• Every new model id returned a response on its route (OpenAI, Anthropic, OpenRouter); gpt-4o-search-preview is absent from OpenRouter's model list
• TemplateBot() with no llms on the OpenRouter route forecast binary, multiple choice and numeric example questions end to end
• The new example question URLs resolve to binary, numeric, multiple choice, discrete and date questions
• Metaculus proxy routes could not be verified: llm-proxy.metaculus.com does not currently resolve

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