def find_best_capability(capabilities):
    """
    Find the capability with the highest score.

    Args:
        capabilities (list): List of tuples containing capability names and scores.

    Returns:
        tuple: The capability with the highest score.
    """
    return max(capabilities, key=lambda x: x[1])

# Example usage
capabilities = [('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_capability = find_best_capability(capabilities)
print(best_capability)