Proprietary Frontier
The smartest closed-source models available via API. These set the state-of-the-art benchmarks for reasoning, knowledge, and massive context windows.
| Rank | Model | Price | Summary |
|---|---|---|---|
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1
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$10.00/1M in | The Agentic Sovereign. Released in late November 2025, it reclaims the throne with unmatched capabilities in autonomous coding and multi-step agentic workflows. It excels at complex, specialized tasks and maintains the highest coherence in long-horizon planning. | |
|
2
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$1.25/1M in | The Universal Standard. Released August 2025, it unifies 'Deep Reasoning' (Thinking) into the default experience, eliminating the toggle between speed and depth. Its 400k context window and multimodal seamlessness make it the most versatile all-rounder. | |
|
3
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$1.25/1M in | The Interface Generator. Launched November 2025 with 'Generative Interfaces' that build custom UI/UX on the fly. Its 'Thinking' mode and deep integration with Workspace make it the superior choice for productivity and data visualization. | |
|
4
|
$0.15/1M in | The Chain-of-Thought Specialist. Famous for its ability to execute 200-300 sequential tool calls without interruption. It is the preferred model for 'lossless' long-context research and complex problem decomposition. | |
|
5
|
Subscription | The Real-Time Pulse. Leveraging immediate access to the X platform's data stream, it offers unparalleled cultural context and 'now-casting' abilities. It has become the go-to for sentiment analysis and breaking news synthesis. | |
|
6
|
Competitive | The European Powerhouse. A frontier-class multimodal model that balances performance with strict privacy controls. It is highly optimized for enterprise deployments requiring reliable function calling. | |
|
7
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$3.00/1M in | The Efficiency King. Released prior to Opus, it remains a favorite for high-speed, high-accuracy tasks where the full weight of Opus is unnecessary. It set the standard for the Fall 2025 coding benchmarks. | |
|
8
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Subscription | The Research Engine. A heavily fine-tuned proprietary implementation of Llama 4 architecture, optimized specifically for search synthesis and citation accuracy, reducing hallucination rates to near zero. | |
|
9
|
Competitive | The RAG Specialist. explicitly designed for Retrieval Augmented Generation in enterprise environments. It excels at citing sources and handling massive document corpora with high precision. |
Just the Highlights
Claude Opus 4.5 (Anthropic)
The Agentic Sovereign. Released in late November 2025, it reclaims the throne with unmatched capabilities in autonomous coding and multi-step agentic workflows. It excels at complex, specialized tasks and maintains the highest coherence in long-horizon planning.
GPT-5 (OpenAI)
The Universal Standard. Released August 2025, it unifies 'Deep Reasoning' (Thinking) into the default experience, eliminating the toggle between speed and depth. Its 400k context window and multimodal seamlessness make it the most versatile all-rounder.
Gemini 3 Pro (Google)
The Interface Generator. Launched November 2025 with 'Generative Interfaces' that build custom UI/UX on the fly. Its 'Thinking' mode and deep integration with Workspace make it the superior choice for productivity and data visualization.
Kimi K2 Thinking (Moonshot)
The Chain-of-Thought Specialist. Famous for its ability to execute 200-300 sequential tool calls without interruption. It is the preferred model for 'lossless' long-context research and complex problem decomposition.
Grok 4 (xAI)
The Real-Time Pulse. Leveraging immediate access to the X platform's data stream, it offers unparalleled cultural context and 'now-casting' abilities. It has become the go-to for sentiment analysis and breaking news synthesis.
Mistral Medium 3.1 (Mistral)
The European Powerhouse. A frontier-class multimodal model that balances performance with strict privacy controls. It is highly optimized for enterprise deployments requiring reliable function calling.
Claude Sonnet 4.5 (Anthropic)
The Efficiency King. Released prior to Opus, it remains a favorite for high-speed, high-accuracy tasks where the full weight of Opus is unnecessary. It set the standard for the Fall 2025 coding benchmarks.
Perplexity LLaMa 4 (Custom)
The Research Engine. A heavily fine-tuned proprietary implementation of Llama 4 architecture, optimized specifically for search synthesis and citation accuracy, reducing hallucination rates to near zero.
Command R+ v2 (Cohere)
The RAG Specialist. explicitly designed for Retrieval Augmented Generation in enterprise environments. It excels at citing sources and handling massive document corpora with high precision.