Chatgpt 4o
OpenAI · text, image → text
This model will point to the latest GPT-4o model used by ChatGPT.
Input$5 /M
Output$15 /M
← ModelsChatgpt 4oGPT 5.6 Luna
Chatgpt 4o vs GPT 5.6 Luna
Compare Chatgpt 4o from OpenAI and GPT 5.6 Luna from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
Chatgpt 4oGPT 5.6 Luna+ Add model · 2/4
GPT 5.6 Luna
OpenAI · text, image → text
GPT-5.6 Luna is designed for cost-sensitive, high-volume workloads. It roughly corresponds to the nano model tier used in earlier GPT-5 families.
Input$1 /M
Output$6 /M
Cache read$0.1 /M
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Chatgpt 4o
GPT 5.6 Luna
Input /M
$5
$1
Output /M
$15
$6
Cache read /M
-
$0.1
Context length
0
1,050,000
Max output
0
128,000
Time to First Token
-
2.2 s
Throughput
-
88.4 tok/s
Modalities
textimage
textimage
Supported Parameters
toolsthinkingstructured outputs
API Formats
chat_completions · responses
Released
-
-
Promotional prices show the discounted rate; see each model page for promotion windows.
Activity Past 30 Days
Daily traffic served through AIHubMix — how demand for each model is trending.
chatgpt-4o-latestgpt-5.6-luna
Tokens / day
-
Requests / day
-
Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
chatgpt-4o-latestgpt-5.6-luna
Throughput (tok/s)
-
TTFT (s)
-
Uptime (%)
-
Cost calculator
Estimate your monthly bill for the same workload on each model.
GPT 5.6 Luna
$150 /mo
Chatgpt 4o
$525 /mo
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: Chatgpt 4o, GPT 5.6 Luna?
GPT 5.6 Luna: $6/M output tokens; Chatgpt 4o: $15/M. Use the cost calculator above to estimate your own workload.
What inputs and capabilities does each model support?
Chatgpt 4o accepts text and image input; GPT 5.6 Luna accepts text and image input and supports tool calling, thinking and structured outputs.
Can I call Chatgpt 4o and GPT 5.6 Luna with the same API key?
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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