Models

GPT 4o 2024 11-20 vs Grok 4.5

Output tokens cost $10.00 per million on GPT 4o 2024 11-20 and $6.00 per million on Grok 4.5. Input tokens cost $2.50 per million on GPT 4o 2024 11-20 and $2.00 per million on Grok 4.5. Cached input tokens are billed at $1.25 per million on GPT 4o 2024 11-20 and $0.50 per million on Grok 4.5. Context lengths are 128,000 tokens on GPT 4o 2024 11-20 and 500,000 tokens on Grok 4.5. Time to first token (TTFT) measured on AIHubMix is 0.6s on GPT 4o 2024 11-20 and 1.7s on Grok 4.5. Measured output throughput is 60.7 tok/s on GPT 4o 2024 11-20 and 25.4 tok/s on Grok 4.5. On the LMArena coding leaderboard GPT 4o 2024 11-20 scores 1361 and Grok 4.5 scores 1523.

OpenAIGPT 4o 2024 11-20GrokGrok 4.5
OpenAI logo
GPT 4o 2024 11-20
OpenAI · text, image → text

The latest version of the GPT-4o model; it is recommended to use this version, as it is currently smarter than the regular 4o.

Input$2.50 /M
Output$10.00 /M
Grok logo
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 4o 2024 11-20
Grok 4.5
Input /M
$2.50
$2.00
Output /M
$10.00
$6.00
Cache read /M
$1.25
$0.50
Context length
128,000
500,000
Max output
16,384
500,000
Time to First Token
0.6 s
1.7 s
Throughput
60.7 tok/s
25.4 tok/s
Modalities
textimage
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputslong context
API Formats
Released
-
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-4o-2024-11-20grok-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-4o-2024-11-20grok-4.5

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
gpt-4o-2024-11-20grok-4.5
1280136014401520
Overall
13351470
Coding
13611523
Math
13091478
Hard prompts
13271495
Instruction following
13181466
Multi-turn
13271477
Creative writing
13261449
Longer query
13381485
Chinese
13291511
English
13481475
Vision
gpt-4o-2024-11-20grok-4.5
1100118012601340
Overall
11191282
OCR
12951295
Diagram
13211321
Homework
13281328

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 4o 2024 11-20
$300 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: GPT 4o 2024 11-20, Grok 4.5?

Grok 4.5: $6.00/M output tokens; GPT 4o 2024 11-20: $10.00/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Grok 4.5: 1523; GPT 4o 2024 11-20: 1361 (LMArena coding leaderboard).

Which responds faster?

GPT 4o 2024 11-20: 0.6s 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 4o 2024 11-20 accepts 128,000 and Grok 4.5 accepts 500,000 input tokens. Maximum output per request is 16,384 tokens on GPT 4o 2024 11-20 and 500,000 tokens on Grok 4.5.

Which one generates tokens faster?

GPT 4o 2024 11-20 at 60.7 tok/s and Grok 4.5 at 25.4 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 4o 2024 11-20 accepts text and image input; Grok 4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.

Can I call GPT 4o 2024 11-20 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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