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$0.20 /M
Output$1.20 /M
← Modelsgpt-5.6-luna
kimi-k3
gpt-5.6-luna vs kimi-k3
Output tokens cost $1.20 per million on gpt-5.6-luna and $15.00 per million on kimi-k3. Input tokens cost $0.20 per million on gpt-5.6-luna and $3.00 per million on kimi-k3. Cached input tokens are billed at $0.02 per million on gpt-5.6-luna and $0.30 per million on kimi-k3. Context windows are 1,050,000 tokens on gpt-5.6-luna and 1,048,576 tokens on kimi-k3. First-token latency measured on AIHubMix is 3.1s on gpt-5.6-luna and 6.8s on kimi-k3. Measured output throughput is 93.8 tokens/s on gpt-5.6-luna and 32.2 tokens/s on kimi-k3.
gpt-5.6-lunakimi-k3+ Add model 2/4
kimi-k3
Moonshot AI · text, image, video → text
Kimi K3 is Kimi’s flagship model for long-horizon coding and end-to-end knowledge work, with a 1M-token context window and industry-leading intelligence.
Input$3.00 /M
Output$15.00 /M
Specs & Pricing
Prices are per million tokens. Latency and throughput are rolling averages measured on AIHubMix.
gpt-5.6-luna
kimi-k3
Input price
$0.20
$3.00
Output price
$1.20
$15.00
Cache read
$0.02
$0.30
Context window
1,050,000
1,048,576
Max output
128,000
1,048,576
Latency (first token)
3.1 s
6.8 s
Throughput
93.8 TPS
32.2 TPS
Modalities
textimage
textimagevideo
Features
toolsthinkingstructured outputs
thinkingfunction callingstructured outputs
Endpoints
chat_completions · responses
Promotional prices show the discounted rate; see each model page for promotion windows.
Usage on AIHubMix last 30 days
Daily traffic served through AIHubMix — how demand for each model is trending.
gpt-5.6-lunakimi-k3
Tokens / day
-
Requests / day
-
Live Performance last 3 days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
gpt-5.6-lunakimi-k3
Throughput (TPS)
-
Latency (s)
-
Uptime (%)
-
Cost Calculator
Estimate your monthly bill for the same workload on each model.
gpt-5.6-luna
$30.00 /mo
kimi-k3
$405 /mo
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: gpt-5.6-luna, kimi-k3?
gpt-5.6-luna: $1.20/M output tokens; kimi-k3: $15.00/M. Use the cost calculator above to estimate your own workload.
Which responds faster?
gpt-5.6-luna: 3.1s first-token latency measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
How large is each context window?
gpt-5.6-luna accepts 1,050,000 and kimi-k3 accepts 1,048,576 input tokens. Maximum output per request is 128,000 tokens on gpt-5.6-luna and 1,048,576 tokens on kimi-k3.
Which one generates tokens faster?
gpt-5.6-luna at 93.8 tokens/s and kimi-k3 at 32.2 tokens/s, measured as output throughput on AIHubMix — a separate metric from first-token latency.
What inputs and capabilities does each model support?
gpt-5.6-luna accepts text and image input and supports tool calling, thinking and structured outputs; kimi-k3 accepts text, image and video input and supports thinking, function calling and structured outputs.
Can I call gpt-5.6-luna and kimi-k3 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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