CtrlAltDebrief

GPT-4o vs o3 Mini

API pricing, context window and capabilities for GPT-4o and o3 Mini, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.

Verdict

computed from the published numbers

o3 Mini wins on price, on intelligence and on context window. Benchmark data is unavailable for one or both models.

Price
o3 Mini
Terminal-Bench
Not called
Intelligence
o3 Mini
Context window
o3 Mini

Key takeaways

who wins on what, from the published numbers

GPT-4o wins

  • More serving providers (6 vs 5)
  • Supports vision
  • Supports audio

o3 Mini 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
Cheaper overall
o3 Mini
$1.10 + $4.40 /1M
Larger context
o3 Mini
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.
GPT-4oo3 Mini
Input $/1M$2.50via OpenAI $1.10via OpenAI best
Output $/1M$10.00via OpenAI $4.40via OpenAI best
Context window131K 200K best
Max output16K 100K best
Serving providers6 best5
DateReleased May 13, 2024 Released Dec 20, 2024

Benchmarks

Benchmark scores, side by side
GPT-4oo3 Mini
Intelligence8.4 12.5 best
GPQA Diamond54% 75% best
Output speed150 t/s 185 t/s best
Latency (TTFT)0.79s best6.84s

Cost calculator

choose a serving route for each side
Input tokens / month
Output tokens / month
GPT-4o
via Gmi
$23
o3 Mini
via Azure
$9.90

Capabilities

feature support, side by side
FeatureGPT-4oo3 Mini
Vision✓—
Tool use✓✓
Reasoning—✓
Audio✓—
Prompt caching✓✓
Structured output✓✓
Web search——

Related comparisons

Frequently asked questions

Which is cheaper, GPT-4o or o3 Mini?
o3 Mini is cheaper for input ($2.50 vs $1.10 per 1M tokens) from OpenAI. o3 Mini is cheaper for output ($10.00 vs $4.40 per 1M tokens) from OpenAI.
What is the context window difference between GPT-4o and o3 Mini?
GPT-4o has a 131K-token context window and o3 Mini has 200K tokens, so o3 Mini can take a larger prompt.
How do GPT-4o and o3 Mini compare on benchmarks?
On the tracked benchmarks, o3 Mini leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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