GPT 3.5 Turbo 16K
OpenAI · → text
Input$3 /M
Output$4 /M
← ModelsGPT 3.5 Turbo 16K
Grok 4.5
GPT 3.5 Turbo 16K vs Grok 4.5
Compare GPT 3.5 Turbo 16K from OpenAI and Grok 4.5 from Grok on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
GPT 3.5 Turbo 16KGrok 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 /M
Output$6 /M
Cache read$0.5 /M
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
GPT 3.5 Turbo 16K
Grok 4.5
Input /M
$3
$2
Output /M
$4
$6
Cache read /M
-
$0.5
Context length
0
500,000
Max output
0
500,000
Time to First Token
-
4.4 s
Throughput
-
34.2 tok/s
Modalities
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputslong context
API Formats
Released
August 28, 2023
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-3.5-turbo-16kgrok-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-3.5-turbo-16kgrok-4.5
Throughput (tok/s)
-
TTFT (s)
-
Uptime (%)
-
LMArena Benchmarks
LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.
Text
gpt-3.5-turbo-16kgrok-4.5
1160126013601460
Overall
12241471
Coding
12741523
Math
12001479
Hard prompts
12281495
Instruction following
12131466
Multi-turn
12001476
Creative writing
11891451
Longer query
12191487
Chinese
12091512
English
12371476
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.
Grok 4.5
$210 /mo
GPT 3.5 Turbo 16K
$240 /mo
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which is cheaper: GPT 3.5 Turbo 16K, Grok 4.5?
GPT 3.5 Turbo 16K: $4/M output tokens; Grok 4.5: $6/M. Use the cost calculator above to estimate your own workload.
How do their coding arena scores compare?
Grok 4.5: 1523; GPT 3.5 Turbo 16K: 1274 (LMArena coding leaderboard).
Can I call GPT 3.5 Turbo 16K 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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