def get_best_model(models):
    """
    Returns the model with the highest score.

    Args:
        models (list): List of tuples containing model information.

    Returns:
        tuple: The best model.
    """
    return max(models, key=lambda x: x[1])

# Example usage:
models = [('evolved_verified_generate_test_1768680667', 4235.89001196408, 51, 8305.7),
          ('verified_default', 4235.0, 51, 8303.9),
          ('evolved_verified_fib_fast_1769055768', 4235.0, 51, 8303.9)]

best_model = get_best_model(models)
print(best_model)  # Output: ('evolved_verified_generate_test_1768680667', 4235.89001196408, 51, 8305.7)