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Llama 3.1 405B OpenAI o3

ME
ACorner A
Llama 3.1 405B
Meta · Llama
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VS
OP
BCorner B
OpenAI o3
OpenAI · o-series
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Wins by spec 2 A rows 3 B rows 4 ties

Key differences

At a glance
ALlama 3.1 405B Input Price: 2.70 vs 10.00
ALlama 3.1 405B Output Price: 2.70 vs 40.00
BOpenAI o3 Released: Jan 2025 vs Jul 2024
BOpenAI o3 Context Window: 200000 vs 128000
=Even on: Vision — No vs Yes

01Capabilities

4 rows
Released
Jul 2024
WIN Jan 2025
Context Window tokens
128000
WIN 200000
Vision
No
Yes
Tool Use
Yes
Yes
Released
A Jul 2024
B WIN Jan 2025
Context Windowtokens
A 128000
B WIN 200000
Vision
A No
B Yes
Tool Use
A Yes
B Yes

02Pricing

2 rows
Input Price USD/MTok
WIN 2.70
10.00
Output Price USD/MTok
WIN 2.70
40.00
Input PriceUSD/MTok
A WIN 2.70
B 10.00
Output PriceUSD/MTok
A WIN 2.70
B 40.00

03Performance

1 rows
MMLU Score %
88.6
WIN 91.6
MMLU Score%
A 88.6
B WIN 91.6

04Info

2 rows
Released
2024
2025
Provider
Meta
OpenAI
Released
A 2024
B 2025
Provider
A Meta
B OpenAI

OpenAI o3 leads on more specs. Check the full table to decide based on what matters most to you.

Llama 3.1 405B vs OpenAI o3 — display, performance, cameras, battery, price, and key differences. Side by side.

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📋 AI Models Buying Guide
Prices are estimated average Saudi market prices, reviewed June 2026. Actual prices vary by retailer, storage configuration, warranty, and promotions. Prices shown in Saudi Riyal.