Claude Opus 4.8 vs GPT-3.5 Turbo (older v0613) (Comparative Analysis)
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Comparative Analysis: Claude Opus 4.8 vs. GPT-3.5 Turbo (older v0613)
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Overview
GPT-3.5 Turbo (older v0613) was released 2 years before Claude Opus 4.8.
 Claude Opus 4.8 |  GPT-3.5 Turbo (older v0613) | |
|---|---|---|
Model Provider The organization behind this AI's development | Anthropic | OpenAI |
Input Context Window Maximum input tokens this model can process at once | 1M tokens | 4.1K tokens |
Output Token Limit Maximum output tokens this model can generate at once | 128K tokens | 4.1K tokens |
Release Date When this model first became publicly available | May 27, 2026 2 months ago May 27th, 2026 | January 25, 2024 2 years ago January 25th, 2024 |
Knowledge Cutoff Latest training-data date reported by the provider | Not reported | September 30, 2021 |
Capabilities & Features
Compare supported features, modalities, and advanced capabilities
Claude Opus 4.8 | GPT-3.5 Turbo (older v0613) | |
|---|---|---|
Input Types Supported input formats | 📝Text🖼️Image📁File | 📝Text |
Reasoning Controls Defaults and configurable reasoning effort | OptionalEffort: Max, Extra High, High, Medium, LowDefault: High | Not reported |
Output Types Supported output formats | 📝Text | 📝Text |
Tokenizer Text encoding system | Claude | GPT |
Key Features Advanced capabilities | ✓Function Calling✓Structured Output✓Reasoning Mode✓Content Moderation | ✓Function Calling✓Structured OutputReasoning ModeContent Moderation |
Pricing
Claude Opus 4.8 is roughly 5.0x more expensive compared to GPT-3.5 Turbo (older v0613) for input tokens and roughly 12.5x more expensive for output tokens.
| Claude Opus 4.8 | GPT-3.5 Turbo (older v0613) | |
|---|---|---|
Input Token Cost Cost per million input tokens | $5.00 per million tokens | $1.00 per million tokens |
Output Token Cost Cost per million output tokens | $25.00 per million tokens | $2.00 per million tokens |
Web Search Cost Additional cost for each web search operation | $0.01 per search | Not specified |
Cache Read Cost Cost to reuse cached input tokens | $0.50 per million tokens | Not specified |
Cache Write Cost Cost to write input tokens to the cache | $6.25 per million tokens | Not specified |
1-Hour Cache Write Cost Cost to cache input tokens for one hour | $10.00 per million tokens | Not specified |
Benchmarks
Compare relevant benchmarks between Claude Opus 4.8 and GPT-3.5 Turbo (older v0613).
| Claude Opus 4.8 | GPT-3.5 Turbo (older v0613) | |
|---|---|---|
Intelligence Index Overall model quality across independent evaluations | 55.7 (Artificial Analysis index; higher is better) | Benchmark not available. |
Coding Index Programming performance across independent evaluations | 74.3 (Artificial Analysis index; higher is better) | Benchmark not available. |
Agentic Index Ability to complete multi-step agentic tasks | 47.2 (Artificial Analysis index; higher is better) | Benchmark not available. |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,341 Elo (#1 in Androidnative (66.8% win rate)) | Benchmark not available. |
At a Glance
Quick overview of what makes Claude Opus 4.8 and GPT-3.5 Turbo (older v0613) unique.
Claude Opus 4.8 by Anthropic understands both text and images, can use external tools and APIs, offers advanced reasoning, generates structured data. It can handle standard conversations with its 1M token context window. Premium pricing at $5.00/M input and $25.00/M output tokens. Includes built-in content moderation for safer outputs. Released May 27th, 2026.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.Explore More Comparisons
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Compare GPT-3.5 Turbo (older v0613) 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
🌐Translation
Multilingual translation tasks