OpenAI GPT 4O, developed by OpenAI, features 128k-token context window. GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as fast and 50% more cost-effective. GPT-4o also offers improved performance in processing non-English languages and enhanced visual capabilities. For benchmarking against other models, it was briefly called ["im-also-a-good-gpt2-chatbot"](https://twitter.com/LiamFedus/status/1790064963966370209) #multimodal Premium pricing at $2.5/1M tokens reflects its advanced capabilities.
Visit OpenAI: GPT-4oAI-Powered
Leverages advanced AI technology to deliver cutting-edge capabilities and results.
Fast & Efficient
Optimized performance ensures quick results without compromising on quality.
Purpose-Built
Specifically designed for llms tasks and workflows.
Openai Model Timeline
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Specifications
AI Evaluation
Speed-optimized for rapid responses without significant quality compromise. Perfect for interactive applications, real-time assistance, and high-throughput scenarios.
Pros
- 128k token context window
- Image and visual analysis
- Multi-modal input support
- Low-latency responses
Cons
- Higher cost tier
- Speed/quality trade-off
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Claude Opus 5.5
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Claude Sonnet 5.5
Claude Sonnet 5.5, released 28 September 2026, is the second model in Anthropic's Claude 5.5 family and the faster, lower-cost complement to Claude Opus 5.5. It keeps Sonnet 5's $2 input / $10 output per million tokens ($0.20 cache reads) while generating output over 30% faster, and scores 70.6% on Terminal-Bench 4.0, above Opus 5.5's 66.4%. It has a 1M-token context window, 128K max output, adaptive thinking, and is the first Sonnet with cyber and anti-distillation classifiers.
