Head-to-head comparison

GPT-4o (2024-08-06) vs GPT-5.4 Mini

GPT-4o (2024-08-06) (OpenAI) and GPT-5.4 Mini (OpenAI) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 3 September 2026

As of 3 September 2026, GPT-5.4 Mini holds the stronger ModelCap Index position (#22 vs #110); GPT-5.4 Mini is 2.2× cheaper per output token ($4.50/1M vs $10.00/1M); and GPT-5.4 Mini offers the longer context window (400K vs 128K tokens).

Which should you choose?

Choose GPT-4o (2024-08-06) if…

ModelCap publishes no field on which GPT-4o (2024-08-06) leads GPT-5.4 Mini for this pair.

Choose GPT-5.4 Mini if…

you want the stronger overall ModelCap Index position — #22 against #110 (66.3 vs 24.2 points).
API cost matters — $4.50/1M output tokens against $10.00/1M, about 2.2× cheaper.
your workload is prompt-heavy — input tokens cost $0.75/1M against $2.50/1M.
you need the longer context window — 400K tokens against 128K.
Arena coding is your yardstick — 1496 against 1360.
AA Intelligence Index is your yardstick — 40.9 against 9.4.
AA τ²-Bench Telecom is your yardstick — 83.3% against 28.9%.
AA Humanity's Last Exam is your yardstick — 28.1% against 2.3%.
you want the more recently listed model — GPT-5.4 Mini was listed 17 March 2026, GPT-4o (2024-08-06) 6 August 2024.

GPT-4o (2024-08-06) vs GPT-5.4 Mini: specs, pricing and context

Specification comparison of GPT-4o (2024-08-06) and GPT-5.4 Mini
Field	GPT-4o (2024-08-06)OpenAI	GPT-5.4 MiniOpenAI
ModelCap Index position	#110	#22
Index score	24.2	66.3
Evidence	Measured	Measured
Input price / 1M tokens	$2.50	$0.75
Output price / 1M tokens	$10.00	$4.50
Context window	128K tokens	400K tokens
Max output tokens	16K	128K
API providers listed	2	2
Weight access	API only	API only
Input modalities	Text, Image, File	File, Image, Text
First listed	6 August 2024	17 March 2026
Publisher	OpenAI	OpenAI

Evidence: 3 public benchmark observations across 3 boards · 4 public benchmark observations across 4 boards. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: GPT-4o (2024-08-06) vs GPT-5.4 Mini

Public benchmark boards where GPT-4o (2024-08-06) or GPT-5.4 Mini has a published result
Board	GPT-4o (2024-08-06)	GPT-5.4 Mini	Leads
Arena codingArena (LMArena)	13601352–1368	14961490–1502High	GPT-5.4 Mini
ARC-AGI-2ARC Prize Foundation	—	18.9%X-High	Only one result
AA Intelligence IndexArtificial Analysis	9.4intelligence-index	40.9intelligence-index	GPT-5.4 Mini
AA Terminal-Bench 2.1Artificial Analysis	—	59.2%terminal-bench-2.1	Only one result
AA τ²-Bench TelecomArtificial Analysis	28.9%tau2-bench-telecom	83.3%tau2-bench-telecom	GPT-5.4 Mini
AA Humanity's Last ExamArtificial Analysis	2.3%humanitys-last-exam	28.1%humanitys-last-exam	GPT-5.4 Mini

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

GPT-4o (2024-08-06) vs GPT-5.4 Mini: common questions

Is GPT-4o (2024-08-06) better than GPT-5.4 Mini?

GPT-5.4 Mini ranks higher on the ModelCap Index as of 3 September 2026: #22 against #110. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it.

Is GPT-4o (2024-08-06) cheaper than GPT-5.4 Mini?

GPT-5.4 Mini is cheaper on output tokens: $4.50/1M against $10.00/1M. Input tokens are $2.50/1M for GPT-4o (2024-08-06) and $0.75/1M for GPT-5.4 Mini. Prices are the lowest listed API offer ModelCap observed, in USD per million tokens.

Which has the bigger context window, GPT-4o (2024-08-06) or GPT-5.4 Mini?

GPT-5.4 Mini has the larger context window: 400K tokens against 128K.

Which is better for coding, GPT-4o (2024-08-06) or GPT-5.4 Mini?

Arena coding: GPT-4o (2024-08-06) 1360, GPT-5.4 Mini 1496 — GPT-5.4 Mini leads.

Are GPT-4o (2024-08-06) and GPT-5.4 Mini open-weight models?

GPT-4o (2024-08-06): API only. GPT-5.4 Mini: API only. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run GPT-4o (2024-08-06) and GPT-5.4 Mini?

ModelCap currently lists 2 API providers for GPT-4o (2024-08-06) and 2 for GPT-5.4 Mini, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this GPT-4o (2024-08-06) vs GPT-5.4 Mini comparison?

Every figure comes from the sealed ModelCap dataset published 3 September 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.