Compare · ModelsLive · 2 picked · head to head
gpt-oss-120b (free) vs o3 Mini
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
o3 Mini wins on 1/1 benchmarks
o3 Mini wins 1 of 1 shared benchmarks. Leads in coding.
Category leads
coding·o3 Mini
Hype vs Reality
Attention vs performance
gpt-oss-120b (free)
#25 by perf·no signal
o3 Mini
#239 by perf·no signal
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
1 benchmark · 2 models
gpt-oss-120b (free)o3 Mini
Aider polyglot
o3 Mini leads by +18.6
Aider Polyglot · measures how well AI models can edit code across multiple programming languages using the Aider coding assistant framework.
gpt-oss-120b (free)
41.8
o3 Mini
60.4
Full benchmark table
| Benchmark | gpt-oss-120b (free) | o3 Mini |
|---|---|---|
Aider polyglot Aider Polyglot · measures how well AI models can edit code across multiple programming languages using the Aider coding assistant framework. | 41.8 | 60.4 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.00 | $0.00 | 131K tokens (~66 books) | — | |
| $1.10 | $4.40 | 200K tokens (~100 books) | $19.25 |