Send a prompt to a hosted open model with a free key

All content below is read from files recorded during the run (see outputs/). Nothing is simulated.

1. NVIDIA endpoint, what actually happened

Catalog listing: HTTP 200, 80 models from GET https://integrate.api.nvidia.com/v1/models (worked without any key). Examples: 01-ai/yi-large, adept/fuyu-8b, ai21labs/jamba-1.5-large-instruct, openai/gpt-oss-20b, moonshotai/kimi-k3, nvidia/nemotron-3-ultra-550b-a55b
Chat without a key: HTTP 401, body: Header of type `authorization` was missing
Surprise: the model used by NVIDIA's own quickstart returns HTTP 410: The model 'meta/llama-3.1-8b-instruct' has reached its end of life on 2026-08-26T09:00:00Z and is no longer available.
BLOCKED: no NVIDIA_API_KEY on this machine; creating the key is the user's action. No authenticated NVIDIA chat answer exists, so none is shown.

2. Control: the same prompts through the OpenAI-compatible shape on an OpenRouter free model (qwen/qwen3.8-27b:free)

This is what the NVIDIA side should be compared against once a key exists. The same script (outputs/run_matrix.py) takes only BASE_URL / key / model.

taskpassedmedian latencymean completion tokensfirst recorded answer
a_summary3/311.3s1735
Marlow’s shrinking catch forces a choice between a cold-storage warehouse and a tourist promenade. After debate, a compromise proposes a smaller north-dock warehouse and modest south-dock promenade, funded by a grant and yacht fees. The mayor promises a spring vote and transparent assumptions, while fishermen form a cooperative to improve prices. Residents agree change is needed, decided openly.
b_json3/31.3s135
{"name":"Dana Levi","city":"Haifa","amount":1250}
c_code3/324.3s2109
```python
def is_prime(n: int) -> bool:
    """
    Return True if n is a prime number, otherwise False.

    A prime is an integer greater than 1 with no divisors other than 1 and
    itself. This checks divisibility up to the square root of n.
    """
    if n < 2:
        return False
    if n in (2, 3):
        return True
    if n % 2 == 0 or n % 3 == 0:
        return False
    # Check candidates of the form 6k + 1 and 6k - 1.
    i = 5
    while i * i <= n:
        if n % i == 0 or n % (i + 2) == 0:
            return False
        i += 6
    return True
```
d_hebrew3/32.4s104
בירת ישראל היא ירושלים.
e_tool3/30.9s58
[{"type": "function", "index": 0, "id": "ff5491bd-0c89-98f2-af2a-b4714218b9ef_0", "function": {"name": "get_weather", "arguments": "{\"city\":\"Paris\"}"}}]