Skip to main content
Launching the open-source gateway

GPT-4.1 vs o3-mini

SpecGPT-4.1o3-mini
Respan Index17.7 (#134)17.8 (#133)
Blended price per 1M$3.5$1.93
Context window1.0M200K
Input / output per 1M$2 / $8$1.1 / $4.4
Max output33K100K
Inputtext, visiontext
Released2025-04-142025-01-31

Respan Index by category

Each category is scored 0 to 100, and how far ahead the winner is. Leads under a point are close to even.

CategoryGPT-4.1o3-mini
Coding4.0 GPT-4.14.5 o3-mini
Agents8.1* GPT-4.114.2* o3-mini
Reasoning18.5 GPT-4.122.4 o3-mini
Knowledge & language30.9 GPT-4.115.3 o3-mini
Human preference46.7 GPT-4.140.3 o3-mini

* Estimated: no published scores in that category. How the Respan Index works

Benchmarks both report

o3-mini leads on 6 of the 10 benchmarks both report. Higher is better. Each score links to where it was published.

BenchmarkGPT-4.1o3-mini
Chess Puzzles (Epoch AI)3%15%
LMArena Elo14151364
FrontierMath Tiers 1-3 v2 (Epoch AI)6%18.6%
GPQA Diamond66.3%74.9%
MATH Level 5 (Epoch AI)83%96.5%
OTIS Mock AIME 2024-2025 (Epoch AI)38.3%76.9%
SimpleBench (SimpleBench)27%22.8%
SimpleQA Verified31.1%15.3%
WeirdML (Håvard Tveit Ihle)39%43.7%
MMLU90.2%85.9%

FAQ

Is GPT-4.1 better than o3-mini?

o3-mini scores 17.8 on the Respan Index (#133), ahead of GPT-4.1 at 17.7 (#134). o3-mini leads on 6 of the 10 benchmarks both report.

Which is cheaper, GPT-4.1 or o3-mini?

GPT-4.1 lists at $2 input and $8 output per 1M tokens; o3-mini at $1.1 and $4.4. o3-mini is 1.8x cheaper per token at list price.

Which has the larger context window?

GPT-4.1 accepts 1.0M tokens and o3-mini 200K tokens.

Compare other models

vs

Built for AI agents.
Break less.
Ship more.