GPT-4o vs o4 Mini High

API pricing, context window and capabilities for GPT-4o and o4 Mini High, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.

Verdict

computed from the published numbers

o4 Mini High wins on price and on context window. Benchmark data is unavailable for one or both models.

Price
o4 Mini High
Terminal-Bench
Not called
Intelligence
Not called
Context window
o4 Mini High

Key takeaways

who wins on what, from the published numbers

GPT-4o wins

  • More serving providers (6 vs 1)
  • Supports audio

o4 Mini High wins

  • Cheaper input ($2.50 vs $1.10 /1M)
  • Cheaper output ($10.00 vs $4.40 /1M)
  • Larger context window (131K vs 200K)
  • Higher max output (16K vs 100K)
  • Has reasoning mode
  • Has web search
Cheaper overall
o4 Mini High
$1.10 + $4.40 /1M
Larger context
o4 Mini High
200K
More providers
GPT-4o
6 providers

Pricing & specs

cheapest listed route · per 1M tokens
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.
GPT-4oo4 Mini High
Input $/1M$2.50via OpenAI $1.10OpenRouter routed quote best
Output $/1M$10.00via OpenAI $4.40OpenRouter routed quote best
Context window131K 200K best
Max output16K 100K best
Serving providers6 best1
DateReleased May 13, 2024 First listed Jul 2026

Benchmarks

Benchmark scores, side by side
GPT-4oo4 Mini High
Intelligence8.4 Not available
GPQA Diamond54% Not available
Output speed150 t/s Not available
Latency (TTFT)0.79s Not available

Cost calculator

choose a serving route for each side
Input tokens / month
Output tokens / month
GPT-4o
via Gmi
$23
o4 Mini High
via OpenRouter
$9.90

Capabilities

feature support, side by side
FeatureGPT-4oo4 Mini High
Vision✓✓
Tool use✓✓
Reasoning—✓
Audio✓—
Prompt caching✓✓
Structured output✓✓
Web search—✓

Related comparisons

Frequently asked questions

Which is cheaper, GPT-4o or o4 Mini High?
o4 Mini High is cheaper for input ($2.50 vs $1.10 per 1M tokens) as an OpenRouter routed quote. o4 Mini High is cheaper for output ($10.00 vs $4.40 per 1M tokens) as an OpenRouter routed quote.
What is the context window difference between GPT-4o and o4 Mini High?
GPT-4o has a 131K-token context window and o4 Mini High has 200K tokens, so o4 Mini High can take a larger prompt.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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