Add support for vllm >= 0.19.0 (#1211)
* Fix vLLM 0.11 compatibility and restore hellaswag_cf
Co-authored-by: OpenAI Codex <codex@openai.com>
* Support vLLM 0.19 prompt schema
Co-authored-by: OpenAI Codex <codex@openai.com>
* Address vLLM PR review feedback
Co-authored-by: OpenAI Codex <codex@openai.com>
* Remove temporary hellaswag_cf task
Co-authored-by: OpenAI Codex <codex@openai.com>
* Clarify vLLM compatibility branches
Co-authored-by: OpenAI Codex <codex@openai.com>
* Handle tied MCQ logits in slow sample comparisons
Co-authored-by: OpenAI Codex <codex@openai.com>
* Handle flat VLM token outputs in tie checks
Co-authored-by: OpenAI Codex <codex@openai.com>
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Co-authored-by: OpenAI Codex <codex@openai.com>
