According to the docs these fields can be null: https://platform.claude.com/docs/en/api/models/list#model_info.max_input_tokens https://platform.claude.com/docs/en/api/models/list#model_info.max_tokens Instead of failing the whole request, we filter those models out since we can't handle models without knowing their context window size. Seems like ClaudeCode follows the same approach. Release Notes: - N/A