GPT-3.5 Turbo 16k vs Sonar Reasoning Pro (Comparative Analysis)
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Comparative Analysis: GPT-3.5 Turbo 16k vs. Sonar Reasoning Pro
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Overview
GPT-3.5 Turbo 16k was released 1 year before Sonar Reasoning Pro.
 GPT-3.5 Turbo 16k |  Sonar Reasoning Pro | |
|---|---|---|
Model Provider The organization behind this AI's development | OpenAI | Perplexity |
Input Context Window Maximum input tokens this model can process at once | 16.4K tokens | 128K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 4.1K tokens | Not specified tokens |
Release Date When this model first became publicly available | August 28, 2023 2 years ago August 28th, 2023 | March 7, 2025 1 year ago March 7th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | September 30, 2021 | Not reported |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
GPT-3.5 Turbo 16k | Sonar Reasoning Pro | |
|---|---|---|
Input Types Supported input formats | 📝Text | 📝Text🖼️Image |
Reasoning Controls Defaults and configurable reasoning effort | Not reported | Optional |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | GPT | Other |
Key Features Advanced capabilities | ✓Function Calling✓Structured OutputReasoning Mode✓Content Moderation | Function CallingStructured Output✓Reasoning ModeContent Moderation |
Pricing
GPT-3.5 Turbo 16k is roughly 1.5x more expensive compared to Sonar Reasoning Pro for input tokens and roughly 0.5x less expensive for output tokens.
| GPT-3.5 Turbo 16k | Sonar Reasoning Pro | |
|---|---|---|
Input Token Cost Cost per million input tokens | $3.00 per million tokens | $2.00 per million tokens |
Output Token Cost Cost per million output tokens | $4.00 per million tokens | $8.00 per million tokens |
Web Search Cost Additional cost for each web search operation | Not specified | $0.005 per search |
At a Glance
Quick overview of what makes GPT-3.5 Turbo 16k and Sonar Reasoning Pro 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. Includes built-in content moderation for safer outputs. Released August 28th, 2023.Sonar Reasoning Pro by Perplexity understands both text and images, offers advanced reasoning. It can handle standard conversations with its 128K token context window. Reasonably priced at $2.00/M input and $8.00/M output tokens. Released March 7th, 2025.Explore More Comparisons
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