GPT-5 Mini
Parameters
100B (Estimated)
Context Length
400K
Modality
Text
Architecture
Undisclosed
License
Proprietary
Release Date
13 Nov 2025
Knowledge Cutoff
May 2024
API Pricing (per 1M)
Input: $0.25 · Output: $2.00
Evaluation Benchmarks
Rank
#55
| Benchmark | Score | Rank |
|---|---|---|
StackUnseen | 0.825 | 14 |
Software Engineering | 0.60 | 29 |
Graduate-Level QA | 0.823 | 57 |
Web Development | medium 1419 | 71 |
Agentic Index | high 0.07 | 108 |
General Text | high 1390 | 117 |
Coding Index | high 0.16 | 146 |
Intelligence Index | high 0.17 medium 0.21 low 0.10 | 180 155 226 |
Summarization Archived | 0.982 | 🥇 1 |
Rankings
Overall Rank
#55
Coding Rank
#55
About GPT-5 Mini
GPT-5 Mini is a lightweight, cost-effective reasoning model from OpenAI optimized for high-volume conversational and agentic workloads. It provides native multimodal support and adjustable thinking effort within an expanded context window.
Technical Specifications
Architecture specifications are undisclosed for proprietary models.
Resources
About GPT-5
OpenAI's latest generation of language models featuring advanced reasoning capabilities, extended context windows up to 400K tokens, and specialized variants for coding, general intelligence, and efficiency. GPT-5 series introduces improved thinking modes, superior performance across benchmarks, and variants optimized for different use cases from high-capacity Pro models to efficient Nano models. Features native multimodal understanding, enhanced mathematical reasoning, and state-of-the-art coding abilities through Codex variants.