OverpayingForAIPricing desk

Classify · 1 checks · max 200 tokens · benched 2026-09-16

GPT-5.5 vs GPT-5.4 vs GPT-5.4 mini vs GPT-5.4 Nano vs GPT-5.3-Codex on single message intent

OpenAI models side by side on "Single message intent": GPT-5.4 Nano scores 10/10; GPT-5.4 Nano is the cheapest answer scoring 8+ at $0.03 per 1,000 runs. Outputs, checks, judge reasons, latency and cost.

The prompt every model received

System

You are a classifier. Reply with exactly one label and nothing else.

User

Choose the single best intent for the message from this list: cancel_subscription, upgrade_plan, billing_question, technical_issue, other. Reply with only the label.

Message: "Hi, my card was charged $49 on the 3rd but my plan page says I'm on the $29 tier. Which one am I actually paying for?"

Rubric for the judge: Exactly the label billing_question with no punctuation or explanation.

Side by side

Every cell is one OpenRouter call at temperature 0 with the prompt's token cap and reasoning effort "low" where the model supports it. Cost is usage × the catalogue rate in models.json. Quality is one judge call to anthropic/claude-haiku-4.5 against the prompt's rubric, cached per prompt version.

GPT-5.5

openai/gpt-5.5

10/10
Latency
371ms
Cost
$0.00109
Per 1,000
$1.09

92 in · 21 out (13 reasoning) · 1 words · checks 1/1

  • exact
billing_question

Judge: Output is exactly 'billing_question' with no punctuation or explanation, perfectly matching the rubric requirements.

GPT-5.4

openai/gpt-5.4

10/10
Latency
413ms
Cost
$0.00067
Per 1,000
$0.67

92 in · 29 out (21 reasoning) · 1 words · checks 1/1

  • exact
billing_question

Judge: Output is exactly 'billing_question' with no punctuation or explanation, perfectly matching the rubric requirements.

GPT-5.4 mini

openai/gpt-5.4-mini

10/10
Latency
346ms
Cost
$0.00015
Per 1,000
$0.15

92 in · 17 out (9 reasoning) · 1 words · checks 1/1

  • exact
billing_question

Judge: Output is exactly 'billing_question' with no punctuation or explanation, perfectly matching the rubric requirements.

GPT-5.4 Nano

openai/gpt-5.4-nano

10/10
top judge scorecheapest scoring 8+
Latency
249ms
Cost
$2.6e-5
Per 1,000
$0.03

92 in · 6 out · 1 words · checks 1/1

  • exact
billing_question

Judge: Output is exactly 'billing_question' with no punctuation or explanation, perfectly matching the rubric requirements.

GPT-5.3-Codex

openai/gpt-5.3-codex

10/10
Latency
394ms
Cost
$0.00054
Per 1,000
$0.54

92 in · 27 out (19 reasoning) · 1 words · checks 1/1

  • exact
billing_question

Judge: Output is exactly 'billing_question' with no punctuation or explanation, perfectly matching the rubric requirements.

Frequently asked

What does this prompt test?

Classify: Exactly the label billing_question with no punctuation or explanation. The deterministic checks are exact.

Which model should I pick for this task?

If the judge's bar of 8/10 is good enough for you, GPT-5.4 Nano at $0.03 per 1,000 runs. If you need the top score, GPT-5.4 Nano at $0.03 per 1,000 runs.

If our calculators helped you cut down on hidden AI wallet leaks, thanks for using them. A tiny fraction of your savings is what keeps our pricing indexes updated daily.

Not sure which AI is cheapest for your use case? Find out in 30 seconds — no signup required.

AI cost intelligence

Stop overpaying for AI tools

Join the OverpayingForAI list for pricing updates, cheaper alternatives, and practical buying guidance.

Now tracking 50+ AI tools, models, platforms, subscriptions, coding tools, and automation products.

We use your email only for OverpayingForAI updates. Unsubscribe anytime.