vs
0:2
overall capability wins (2 ties across 4 scored). o3-pro leads overall.
- Reasoning0:1
- Coding0:1
- Pricing3:0
- Speed0:2
Verdict
o3-pro leads coding (widest gap: +23.2 on Aider); o1 is ~1.3x cheaper on a blended token basis than o3-pro.
- o3-pro leads coding (widest gap: +23.2 on Aider)
- o1 is ~1.3x cheaper on a blended token basis than o3-pro
Cost for 1M in + 250K out
Illustrative chat workload at primary-provider list prices.
- o1
- $30
- o3-pro
- $40
o1 is about 1.3x cheaper on this workload.
Price per 1M tokens
Full comparison
Organization
OpenAI
OpenAI
Family
GPT-4 / o-series
GPT-4 / o-series
License
Proprietary
Proprietary
Open weights
No
No
Release
Dec 5, 2024
Jun 10, 2025
Knowledge cutoff
-
-
API / provider
OpenAI
OpenAI
Modalities
text, image → text
text, image → text
Specs
Context window
200K
200K
Max output
100K
100K
Parameters
—
—
Pricing
Input $/1M
$15
$20
Output $/1M
$60
$80
Blended $/1M (3∶1)
$26.25
$35
Speed
tok/s
35
40
TTFT (s)
3
2.5
Reasoning
MMLU-Pro
84.1
—
GPQA Diamond
74.7
84.5
Humanity's Last Exam
7.0
—
AIME 2025
—
—
MATH-500
97.0
—
Humanity's Last Exam (with tools)
—
—
AA-Omniscience Accuracy
34.5
—
AA-LCR v1.1
65.0
—
CritPt
0.3
—
MMMU-Pro
—
—
IFBench
70.3
—
Chartography
—
—
Chartography (With Tools)
—
—
Coding
SWE-bench Verified
—
—
SWE-bench Pro
—
—
SWE-bench Multilingual
—
—
LiveCodeBench
67.9
—
Terminal-Bench 2.1
—
—
Aider Polyglot
61.7
84.9
Terminal-Bench 3
—
—
BigCodeBench
—
—
SciCode
35.8
—
CursorBench
—
—
SWE-Rebench
—
—
NL2Repo-Bench
—
—
DeepSWE
—
—
WebDev Arena
—
—
Terminal-Bench 4.0
—
—
CursorBench 4.0
—
—
FrontierCode v1.1 (Main)
—
—
Arena
LMArena Elo
1,402
—
| Metric | o1 | o3-pro | Delta |
|---|---|---|---|
| Identity | |||
| Organization | OpenAI | OpenAI | — |
| Family | GPT-4 / o-series | GPT-4 / o-series | — |
| License | Proprietary | Proprietary | — |
| Open weights | No | No | — |
| Release | Dec 5, 2024 | Jun 10, 2025 | — |
| Knowledge cutoff | - | - | — |
| API / provider | OpenAI | OpenAI | — |
| Modalities | text, image → text | text, image → text | — |
| Specs | |||
| Context window | 200K | 200K | tie |
| Max output | 100K | 100K | tie |
| Parameters | — | — | — |
| Pricing | |||
| Input $/1M | $15 | $20 | A +$5 |
| Output $/1M | $60 | $80 | A +$20 |
| Blended $/1M (3∶1) | $26.25 | $35 | A +$8.75 |
| Speed | |||
| tok/s | 35 | 40 | B +5.00 |
| TTFT (s) | 3 | 2.5 | B +0.50 |
| Reasoning | |||
| MMLU-Pro | 84.1 | — | — |
| GPQA Diamond | 74.7 | 84.5 | B +9.8 pts |
| Humanity's Last Exam | 7.0 | — | — |
| AIME 2025 | — | — | — |
| MATH-500 | 97.0 | — | — |
| Humanity's Last Exam (with tools) | — | — | — |
| AA-Omniscience Accuracy | 34.5 | — | — |
| AA-LCR v1.1 | 65.0 | — | — |
| CritPt | 0.3 | — | — |
| MMMU-Pro | — | — | — |
| IFBench | 70.3 | — | — |
| Chartography | — | — | — |
| Chartography (With Tools) | — | — | — |
| Coding | |||
| SWE-bench Verified | — | — | — |
| SWE-bench Pro | — | — | — |
| SWE-bench Multilingual | — | — | — |
| LiveCodeBench | 67.9 | — | — |
| Terminal-Bench 2.1 | — | — | — |
| Aider Polyglot | 61.7 | 84.9 | B +23.2 pts |
| Terminal-Bench 3 | — | — | — |
| BigCodeBench | — | — | — |
| SciCode | 35.8 | — | — |
| CursorBench | — | — | — |
| SWE-Rebench | — | — | — |
| NL2Repo-Bench | — | — | — |
| DeepSWE | — | — | — |
| WebDev Arena | — | — | — |
| Terminal-Bench 4.0 | — | — | — |
| CursorBench 4.0 | — | — | — |
| FrontierCode v1.1 (Main) | — | — | — |
| Arena | |||
| LMArena Elo | 1,402 | — | — |
o1
- Context
- 200K / 100K out
- Parameters
- —
- Price
- $15 / $60
- Speed
- 35 tok/s · 3s TTFT
- Modalities
- text, image → text
- License
- Proprietary
Original o-series reasoning model - legacy deep reasoning SKU retained for API compatibility.
o3-pro
- Context
- 200K / 100K out
- Parameters
- —
- Price
- $20 / $80
- Speed
- 40 tok/s · 2.5s TTFT
- Modalities
- text, image → text
- License
- Proprietary
Maximum o3 reasoning tier for hardest STEM and multi-step problems at premium $20/$80 rates.
Benchmark charts
Winner bars are emphasized. Per-benchmark deltas sit above each chart.