GPT 5.4 Nano
OpenAI · text, image → text
GPT-5.4 nano is designed for tasks where speed and cost are most important, such as classification, data extraction, ranking, and sub-agent scenarios.
Input$0.20 /M
Output$1.25 /M
← ModelsGPT 5.4 Nano
Grok 4.5
GPT 5.4 Nano vs Grok 4.5
Output tokens cost $1.25 per million on GPT 5.4 Nano and $6.00 per million on Grok 4.5. Input tokens cost $0.20 per million on GPT 5.4 Nano and $2.00 per million on Grok 4.5. Cached input tokens are billed at $0.02 per million on GPT 5.4 Nano and $0.50 per million on Grok 4.5. Context lengths are 400,000 tokens on GPT 5.4 Nano and 500,000 tokens on Grok 4.5. Time to first token (TTFT) measured on AIHubMix is 1.4s on GPT 5.4 Nano and 1.7s on Grok 4.5. Measured output throughput is 130.1 tok/s on GPT 5.4 Nano and 25.3 tok/s on Grok 4.5. On the LMArena coding leaderboard GPT 5.4 Nano scores 1460 and Grok 4.5 scores 1523.
GPT 5.4 NanoGrok 4.5+ Add model · 2/4
Grok 4.5
Grok · text, image → text
Grok 4.5 was trained on datasets spanning knowledge in coding, science, engineering, and math. With both intelligent and efficient reasoning, Grok 4.5 excels at real engineering tasks and exceeds comparable leading models at these tasks.
Input$2.00 /M
Output$6.00 /M
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
GPT 5.4 Nano
Grok 4.5
Input /M
$0.20
$2.00
Output /M
$1.25
$6.00
Cache read /M
$0.02
$0.50
Context length
400,000
500,000
Max output
128,000
500,000
Time to First Token
1.4 s
1.7 s
Throughput
130.1 tok/s
25.3 tok/s
Modalities
textimage
textimage
Supported Parameters
toolsfunction callingstructured outputsthinkingweb
thinkingtoolsfunction callingstructured outputslong context
API Formats
Released
March 17, 2026
July 2026
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.
gpt-5.4-nanogrok-4.5
Tokens / day
-
Requests / day
-
Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
gpt-5.4-nanogrok-4.5
Throughput (tok/s)
-
TTFT (s)
-
Uptime (%)
-
LMArena Benchmarks
LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.
Text
gpt-5.4-nanogrok-4.5
1320138014401500
Overall
14021470
Coding
14601523
Math
14231478
Hard prompts
14211495
Instruction following
13881466
Multi-turn
14141477
Creative writing
13381449
Longer query
14041485
Chinese
14221511
English
14141475
Vision
gpt-5.4-nanogrok-4.5
1180124013001360
Overall
12011282
OCR
12151295
Diagram
12281321
Homework
12341328
Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.
Cost calculator
Estimate your monthly bill for the same workload on each model.
GPT 5.4 Nano
$30.75 /mo
Grok 4.5
$210 /mo
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: GPT 5.4 Nano, Grok 4.5?
GPT 5.4 Nano: $1.25/M output tokens; Grok 4.5: $6.00/M. Use the cost calculator above to estimate your own workload.
How do their coding arena scores compare?
Grok 4.5: 1523; GPT 5.4 Nano: 1460 (LMArena coding leaderboard).
Which responds faster?
GPT 5.4 Nano: 1.4s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
How large is each context window?
GPT 5.4 Nano accepts 400,000 and Grok 4.5 accepts 500,000 input tokens. Maximum output per request is 128,000 tokens on GPT 5.4 Nano and 500,000 tokens on Grok 4.5.
Which one generates tokens faster?
GPT 5.4 Nano at 130.1 tok/s and Grok 4.5 at 25.3 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
What inputs and capabilities does each model support?
GPT 5.4 Nano accepts text and image input and supports tool calling, function calling, structured outputs, thinking and web search; Grok 4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.
Can I call GPT 5.4 Nano and Grok 4.5 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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