GPT-3.5 Turbo 16k vs GPT-5 Mini (Comparative Analysis)
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Comparative Analysis: GPT-3.5 Turbo 16k vs. GPT-5 Mini
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Overview
GPT-3.5 Turbo 16k was released 1 year before GPT-5 Mini.
 GPT-3.5 Turbo 16k | GPT-5 Mini | |
|---|---|---|
Model Provider The organization behind this AI's development | OpenAI | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 16.4K tokens | 400K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 4.1K tokens | 128K tokens |
Release Date When this model first became publicly available | August 28, 2023 2 years ago August 28th, 2023 | August 7, 2025 11 months ago August 7th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | September 30, 2021 | May 31, 2024 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
GPT-3.5 Turbo 16k | GPT-5 Mini | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text🖼️Image📁File |
Reasoning Controls Defaults and configurable reasoning effort | Not reported | Always enabledEffort: High, Medium, Low, MinimalDefault: Medium |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | GPT | GPT |
Key Features Advanced capabilities | ✓Function Calling✓Structured OutputReasoning ModeContent Moderation | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation |
Pricing
GPT-3.5 Turbo 16k is roughly 12.0x more expensive compared to GPT-5 Mini for input tokens and roughly 2.0x more expensive for output tokens.
| GPT-3.5 Turbo 16k | GPT-5 Mini | |
|---|---|---|
Input Token Cost Cost per million input tokens | $3.00 per million tokens | $0.25 per million tokens |
Output Token Cost Cost per million output tokens | $4.00 per million tokens | $2.00 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.01 per search |
Cache Read Cost Cost to reuse cached input tokens | Not specified | $0.02 per million tokens |
Benchmarks
Compare relevant benchmarks between GPT-3.5 Turbo 16k and GPT-5 Mini.
| GPT-3.5 Turbo 16k | GPT-5 Mini | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | Benchmark not available. | 25.3 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | Benchmark not available. | 15.6 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | Benchmark not available. | 19.4 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | Benchmark not available. | 1,186 Elo (#58 in Game Dev (46.5% win rate)) |
At a Glance
Quick overview of what makes GPT-3.5 Turbo 16k and GPT-5 Mini unique.
GPT-3.5 Turbo 16k by OpenAI can use external tools and APIs, generates structured data. It can handle standard conversations with its 16.4K token context window. Reasonably priced at $3.00/M input and $4.00/M output tokens. Released August 28th, 2023.GPT-5 Mini by OpenAI understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 400K token context window. Reasonably priced at $0.25/M input and $2.00/M output tokens. Includes built-in content moderation for safer outputs. Released August 7th, 2025.Explore More Comparisons
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Compare GPT-5 Mini with:
🚀Programming
Best models for coding and development
🎨Creative & Roleplay
Models optimized for creative writing
📢Marketing
Content creation and marketing tasks
💻Technology
Technical analysis and explanations
🔬Science
Scientific research and analysis
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Multilingual translation tasks