GPT-3.5 Turbo (older v0613) vs Sonar Reasoning Pro (Comparative Analysis)
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Comparative Analysis: GPT-3.5 Turbo (older v0613) vs. Sonar Reasoning Pro
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Overview
GPT-3.5 Turbo (older v0613) was released 1 year before Sonar Reasoning Pro.
 GPT-3.5 Turbo (older v0613) |  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 | 4.1K 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 | January 25, 2024 2 years ago January 25th, 2024 | 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 (older v0613) | 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 ModeContent Moderation | Function CallingStructured Output✓Reasoning ModeContent Moderation |
Pricing
GPT-3.5 Turbo (older v0613) is roughly 0.5x less expensive compared to Sonar Reasoning Pro for input tokens and roughly 0.3x less expensive for output tokens.
| GPT-3.5 Turbo (older v0613) | Sonar Reasoning Pro | |
|---|---|---|
Input Token Cost Cost per million input tokens | $1.00 per million tokens | $2.00 per million tokens |
Output Token Cost Cost per million output tokens | $2.00 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 (older v0613) and Sonar Reasoning Pro unique.
GPT-3.5 Turbo (older v0613) by OpenAI can use external tools and APIs, generates structured data. It can handle standard conversations with its 4.1K token context window. Reasonably priced at $1.00/M input and $2.00/M output tokens. Released January 25th, 2024.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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