gpt-oss-120b vs Ministral 3 14B: price, context and capabilities

Choose gpt-oss-120b for the hardest reasoning tasks, agentic coding, tool use and support agents and reasoning over long documents. Choose Ministral 3 14B for very long inputs, images as input and the latest release.

In short

  • A price comparison is not possible: one of them has no comparable published price.
  • Ministral 3 14B reads more per request: 256k tokens against 131k.
  • Ministral 3 14B is the newer model (December 2025, against August 2025).
  • Only gpt-oss-120b offers reasoning.
  • Only Ministral 3 14B offers vision.

Open in the full comparison table

Which should you choose?

Each answer below comes straight from the published prices, specifications and independent benchmark results.

Very long inputs

Choose Ministral 3 14B

Ministral 3 14B reads up to 256k tokens per request, against 131k for gpt-oss-120b.

Hardest reasoning tasks

Choose gpt-oss-120b

gpt-oss-120b scores 11.6 on the Artificial Analysis Intelligence Index, against 6 for Ministral 3 14B.

Agentic coding

Choose gpt-oss-120b

gpt-oss-120b scores 23.5% on Terminal-Bench Hard, against 4.5% for Ministral 3 14B.

Tool use and support agents

Choose gpt-oss-120b

gpt-oss-120b scores 65.8% on τ²-Bench (agentic tool use), against 27.2% for Ministral 3 14B.

Reasoning over long documents

Choose gpt-oss-120b

gpt-oss-120b scores 52% on Long-context reasoning (AA-LCR), against 26.3% for Ministral 3 14B.

Images as input

Choose Ministral 3 14B

Ministral 3 14B accepts images as input; gpt-oss-120b does not.

Latest release

Choose Ministral 3 14B

Ministral 3 14B is the newer release (December 2025, against August 2025 for gpt-oss-120b).

Specifications side by side

gpt-oss-120bMinistral 3 14B
ProviderOpenAIMistral AI
CategoryLanguage modelsLanguage models
StatusGenerally availableGenerally available
Headline priceNo dataNo data
InputNo dataNo data
OutputNo dataNo data
Cached inputNo dataNo data
Context window131k256k
Max output131kNo data
ReleasedAugust 2025December 2025
Knowledge cutoffJune 2024No data
LicenceOpen weightsOpen weights
CapabilitiesReasoning, Tool calling, Self-hostableVision, Tool calling, Self-hostable
API model idgpt-oss-120bministral-14b-2512

Benchmarks side by side

Leader in bold.

Benchmarkgpt-oss-120bMinistral 3 14B
Intelligence Index 11.6 6
Terminal-Bench Hard 23.5% 4.5%
SciCode 34% 23.8%
GPQA Diamond 78.2% 57.2%
Humanity's Last Exam 19.6% 4.6%
IFBench (instruction following) 69% 32%
τ²-Bench (agentic tool use) 65.8% 27.2%
Long-context reasoning (AA-LCR) 52% 26.3%
MMMU-Pro (visual reasoning) No data 49.8%

Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.

Frequently asked questions

Should I choose gpt-oss-120b or Ministral 3 14B?

Choose gpt-oss-120b for the hardest reasoning tasks, agentic coding, tool use and support agents and reasoning over long documents. Choose Ministral 3 14B for very long inputs, images as input and the latest release.

Which is cheaper, gpt-oss-120b or Ministral 3 14B?

A price comparison is not possible: one of them has no comparable published price.

Which has the larger context window, gpt-oss-120b or Ministral 3 14B?

Ministral 3 14B reads more per request: 256k tokens against 131k.

What is the difference between gpt-oss-120b and Ministral 3 14B?

gpt-oss-120b is made by OpenAI and Ministral 3 14B by Mistral AI. A price comparison is not possible: one of them has no comparable published price. Ministral 3 14B reads more per request: 256k tokens against 131k. Ministral 3 14B is the newer model (December 2025, against August 2025). Only gpt-oss-120b offers reasoning. Only Ministral 3 14B offers vision.

Which is better for coding, gpt-oss-120b or Ministral 3 14B?

gpt-oss-120b scores 23.5% on Terminal-Bench Hard, against 4.5% for Ministral 3 14B.

Which is newer, gpt-oss-120b or Ministral 3 14B?

Ministral 3 14B was released on December 2025 and gpt-oss-120b on August 2025.