Router profile
Respan
Respan (formerly Keywords AI)
Unified LLM engineering platform (gateway + observability + evals + prompt management) routing across 250+ models; previously Keywords AI, rebranded February 2026.
Type
Hybrid
Lead directory segment
Pricing model
Subscription
Routes ~250 models
Hosting
Hosted SaaS
No self-host flag
Data retention
Opt-in logging
Verify for production policy
At a glance
- Decision mechanism
- Rules / heuristicsPredictive learned
- Optimizes for
- CostQualityLatency
- Routing scope
- Cross-provider
- Decision timing
- Pre-generation
- Deployment path
- Proxy in path
- Openness
- Commercial
- API compatibility
- OpenAI
Routes to these providers
OpenAI's AI platform offers a comprehensive suite of advanced technologies designed to revolutionize various applications across industries. At its core, the platform features powerful natural language processing capabilities for generating human-like text, image generation through models like DALL-E, and automatic speech recognition with Whisper. These functionalities are complemented by robust predictive analytics tools that enable businesses to forecast user behavior and automate customer interactions through sophisticated chatbots. The platform's APIs facilitate seamless integration, allowing users to develop custom solutions that leverage machine learning for analyzing large datasets, automating repetitive tasks, and enhancing decision-making processes. One of the platform's key strengths lies in its flexibility and customization options. Users can fine-tune models to better align with their specific needs, ensuring that AI outputs are tailored to individual organizational requirements. This adaptability, combined with the platform's advanced security features such as data encryption and multi-factor authentication, makes it a powerful tool for businesses looking to innovate rapidly and maintain a competitive edge. By automating knowledge-based tasks and providing personalized recommendations and insights, the platform significantly enhances operational efficiency and customer experience, enabling organizations to scale operations effectively and foster customer loyalty .
Creator of Claude AI models, accessed via the Anthropic API and the Anthropic Console (console.anthropic.com). The Console hosts the Workbench prompt playground, API keys, usage analytics, and team billing.
Google AI Studio is a model prototyping environment and API access point for Gemini models, offering an inference playground for developers to test and build AI applications.
Google Cloud Vertex AI is a comprehensive machine learning platform that provides end-to-end solutions for developing, deploying, and managing AI models. The platform offers a unified interface that integrates various tools and services, enabling users to efficiently handle the entire machine learning lifecycle. Key features include AutoML capabilities for building custom models with minimal coding, a managed notebook environment for prototyping, and robust MLOps tools for model monitoring and versioning. Vertex AI supports both pre-trained models and custom training, making it versatile for a wide range of applications such as natural language processing, image recognition, and predictive analytics. The platform's design focuses on increasing productivity and accelerating time-to-market for AI solutions. By consolidating multiple AI tools into a single ecosystem, Vertex AI reduces manual effort and enhances collaboration among data scientists and engineers. Its scalable architecture allows organizations to efficiently manage large datasets and complex models, while the pay-as-you-go pricing model makes it accessible for businesses of all sizes. Additionally, Vertex AI's integration with popular open-source frameworks like TensorFlow and PyTorch enables users to leverage existing models and tools, fostering innovation and facilitating the development of customized AI applications tailored to specific business needs.
Mistral AI's platform offers a comprehensive suite of generative AI capabilities, centered around its open-source language models. The platform features models like Mistral 7B and Mistral Large 2, which excel in various natural language processing tasks, including text generation, code creation, and summarization. These models boast impressive context lengths, with Mistral Large 2 capable of processing up to 128,000 tokens, enabling the handling of complex, lengthy inputs. The platform's multilingual proficiency, supporting languages such as English, French, and Spanish, enhances its versatility across different regions and use cases. A standout feature of the Mistral AI platform is its fine-tuning functionality, allowing users to tailor models to specific tasks or domains without the need for extensive computational resources. This process is streamlined through Mistral's server infrastructure, where users can easily upload datasets, create fine-tuning jobs, and monitor progress via an intuitive API. The platform also facilitates agent creation and provides a Software Development Kit (SDK), enabling seamless integration of Mistral's AI capabilities into existing applications. These features collectively make the platform a powerful and flexible tool for developers and businesses looking to leverage cutting-edge AI technologies in their projects.
DeepSeek's AI platform offers cutting-edge models like DeepSeek-V2 and DeepSeek-Coder-V2, designed for complex tasks such as coding, mathematics, and advanced reasoning. Built on a Mixture-of-Experts (MoE) architecture, the platform activates only a subset of parameters during inference, enhancing computational efficiency and reducing training costs and inference time. With 236 billion parameters and a context length of up to 128,000 tokens, DeepSeek models deliver exceptional performance, ranking among the top in various AI benchmarks, including AlignBench and MT-Bench. The platform's API is user-friendly and cost-effective, offering competitive pricing for input and output tokens. DeepSeek supports 338 programming languages, providing robust coding assistance and generating high-quality solutions for complex mathematical problems. The open-source nature of the models promotes transparency and community collaboration, allowing users to seamlessly integrate DeepSeek's powerful AI tools into their existing workflows. This combination of high performance, affordability, and versatility makes the platform an attractive choice for developers and businesses looking to leverage advanced AI technologies.
Pricing & data handling
Free tier: 10K traces/month, no credit card required. Paid plans available (pricing not published). Rebranded from Keywords AI on 2026-02-20. YC-backed. Serves 1B+ logs, 2T+ tokens/month across 100+ teams.
- Retention
- Opt-in logging
- Self-host
- Not indicated
- Last checked
- 2026-06-08
Sources & freshness
- homepage, status, models_count, summary, rebrand · checked 2026-06-08
- yc_profile, founding · checked 2026-06-08
- gateway_guide · checked 2026-06-08
Last reviewed 2026-06-08.
Compare & related routers
Compare Respan against another router without mixing model rows into the same view.
Compare with AIRouterUnified hybrid gateway to 400+ models from 60+ providers via a single OpenAI-compatible API, with optional auto-routing that selects the best model per prompt.
AI gateway to 400+ LLM providers with intelligent routing, caching, guardrails, and governance; flat 5% markup on model costs with no subscription fee.