Which is cheaper, Gemini 2.5 Pro or o4-mini?

o4-mini is cheaper for both input ($1.10/M tokens) and output ($4.40/M tokens), compared to Gemini 2.5 Pro at $1.25/$10.00 per million tokens.

Which is faster, Gemini 2.5 Pro or o4-mini?

Gemini 2.5 Pro is faster at 70 tokens/sec with a TTFT of 400ms, compared to o4-mini at 60 tokens/sec and 1200ms TTFT.

Which has a bigger context window, Gemini 2.5 Pro or o4-mini?

Gemini 2.5 Pro has a 1049K token context window, which is larger o4-mini's 200K context window.

Which is better for coding, Gemini 2.5 Pro or o4-mini?

o4-mini has a higher coding ELO of 1380 compared to Gemini 2.5 Pro's 1350, making it the stronger choice for code generation and programming tasks.

Gemini 2.5 Pro vs o4-mini: Pricing, Benchmarks & Verdict (2026)

Name: Gemini 2.5 Pro vs o4-mini — Pricing, Benchmarks & Speed Comparison 2026
Creator: LLMversus
License: https://creativecommons.org/licenses/by/4.0/

Pricing verified Apr 20, 2026By LLMversusUpdated June 14, 2026View methodology

⚡ Quick Answer

o4-mini is significantly cheaper at $1.10/$4.40 per million tokens vs $1.25/$10.00. o4-mini is stronger for coding with a coding ELO of 1380 vs 1350. Gemini 2.5 Pro offers a larger 1049K context window vs 200K.

Updated: April 20, 2026 · ✓ Pricing verified

Side-by-Side Comparison

Feature	Gemini 2.5 Pro	o4-mini
Provider	Google	OpenAI
Input Price / 1M tokens	$1.25	$1.10
Output Price / 1M tokens	$10.00	$4.40
Context Window	1.048576M	128K
Max Output Tokens	65,536	32,768
Arena ELO	1,430	1,260
Coding ELO	1,430	1,270
TTFT (ms)	400	180
Tokens/sec	70	105
Multimodal	Yes	No
JSON Mode	Yes	Yes
Function Calling	Yes	Yes
Vision	Yes	No

When to Use Gemini 2.5 Pro

Choose Gemini 2.5 Pro when you need: 1m token context window, excellent reasoning capabilities, strong coding performance, native multimodal support. It excels at coding, reasoning, long-context, multimodal tasks. Its 1049K context window is larger, making it better for long-document processing.

Strengths:

1M token context window
Excellent reasoning capabilities
Strong coding performance
Native multimodal support

Best for:

codingreasoninglong-contextmultimodal

When to Use o4-mini

Choose o4-mini when you need: excellent reasoning and math capabilities, strong coding performance, affordable for a reasoning model, large output window. It excels at reasoning, math, coding, science tasks. It is also the more cost-effective option between the two.

Strengths:

Affordable
Fast
Good reasoning

Best for:

general-purposereasoningcoding

Gemini 2.5 Pro vs o4-mini: Pricing, Benchmarks & Verdict (2026)

Side-by-Side Comparison

Frequently Asked Questions

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