Which is cheaper, GPT-4o or o3-mini?

o3-mini is cheaper for both input ($1.10/M tokens) and output ($4.40/M tokens), compared to GPT-4o at $2.50/$10.00 per million tokens.

Which is faster, GPT-4o or o3-mini?

GPT-4o is faster at 95 tokens/sec with a TTFT of 230ms, compared to o3-mini at 55 tokens/sec and 1500ms TTFT.

Which has a bigger context window, GPT-4o or o3-mini?

o3-mini has a 200K token context window, which is larger GPT-4o's 128K context window.

Which is better for coding, GPT-4o or o3-mini?

o3-mini has a higher coding ELO of 1340 compared to GPT-4o's 1265, making it the stronger choice for code generation and programming tasks.

GPT-4o vs o3-mini: Pricing, Benchmarks & Verdict (2026)

Name: GPT-4o vs o3-mini — Pricing, Benchmarks & Speed Comparison 2026
Creator: LLMversus
License: https://creativecommons.org/licenses/by/4.0/

Pricing verified Aug 10, 2026By LLMversusUpdated August 11, 2026View methodology

⚡ Quick Answer

o3-mini is significantly cheaper at $1.10/$4.40 per million tokens vs $2.50/$10.00. o3-mini is stronger for coding with a coding ELO of 1340 vs 1265. GPT-4o is faster at 95 tokens/sec vs 55 tokens/sec. o3-mini ranks higher overall with an Arena ELO of 1310 vs 1260. o3-mini offers a larger 200K context window vs 128K.

Updated: August 10, 2026 · ✓ Pricing verified

Side-by-Side Comparison

Feature	GPT-4o	o3-mini
Provider	OpenAI	OpenAI
Input Price / 1M tokens	$2.50	$1.10
Output Price / 1M tokens	$10.00	$4.40
Context Window	128K	128K
Max Output Tokens	16,384	65,536
Arena ELO	1,162	1,348
Coding ELO	1,162	1,348
TTFT (ms)	230	350
Tokens/sec	95	25
Multimodal	Yes	No
JSON Mode	Yes	Yes
Function Calling	Yes	No
Vision	Yes	No

When to Use GPT-4o

Choose GPT-4o when you need: fast response times, strong multimodal capabilities, code execution support. It excels at general-purpose, multimodal, function-calling tasks.

Strengths:

Fast response times
Strong multimodal capabilities
Code execution support

Best for:

general-purposemultimodalfunction-calling

When to Use o3-mini

Choose o3-mini when you need: strong mathematical reasoning, good coding performance, affordable reasoning model, large output window. It excels at reasoning, math, coding, science tasks. It is also the more cost-effective option between the two. Its 200K context window is larger, making it better for long-document processing.

Strengths:

Strong reasoning
Good math skills
Affordable reasoning

Best for:

reasoningmathgeneral-purpose

GPT-4o vs o3-mini: Pricing, Benchmarks & Verdict (2026)

Side-by-Side Comparison

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