What AI models does Jasper use?

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Accepted Answer

Jasper runs on ChatGPT (OpenAI), Claude (Anthropic), General Purpose LLMs (Multiple Providers), GPT-5.2 (OpenAI), Jasper AI Engine (Jasper), Jasper AI Engine (LLM routing multi-model) (Jasper), Jasper AI Engine (LLM-agnostic routing) (Jasper), Jasper AI Engine (Multi-LLM) (Jasper), Jasper AI Engine (Multi-model LLM Routing) (Jasper), Jasper Engine (LLM-Optimized Architecture) (Jasper), Jasper Engine (multi-LLM routing) (Jasper), Jasper Engine (Multi-model routing) (Jasper), Jasper's LLM-Optimized Architecture (Multi-LLM Routing) (Jasper), Jasper's LLM-Optimized Architecture (Multiple LLMs) (Jasper), LLM Routing (Multi-model), LLM Routing (Multi-Model Engine) (Jasper), LLM Routing (Multi-model) (Jasper AI Engine), LLM Routing & Maintenance (multiple fine-tuned models) (Jasper), LLM Routing & Maintenance (Several LLMs) (Multi-provider), LLM-agnostic / Multi-LLM Routing (Multi-provider), LLM-agnostic / Multi-model routing (Provider undisclosed), LLM-agnostic architecture (multi-provider), LLM-agnostic architecture / several large language models (multi-provider), LLM-Optimized Architecture (Jasper), LLM-Optimized Architecture (Multi-LLM) (Jasper), LLM-Optimized Architecture (Multi-Model Routing) (Jasper), LLM-Optimized Architecture (Multi-Model) (Jasper), LLM-Optimized Architecture (Multiple LLMs) (Jasper), LLM-Optimized Architecture (Multiple Models) (Jasper), LLM-Optimized Multi-Model Architecture (Jasper), multi-LLM engine (Jasper AI), Multi-LLM Routing (Proprietary Engine) (Jasper), Multiple LLMs (LLM-Optimized Architecture) (Provider undisclosed), Multiple LLMs (routed) (Multi-provider), Multiple models (LLM-agnostic / proprietary routing) (Jasper AI Engine), proprietary marketing knowledge layer atop general purpose LLMs (Jasper) and proprietary marketing knowledge layer sitting atop general purpose LLMs (Jasper), and routes requests between them. Model claims are labelled by how we know them: ChatGPT — inferred, Claude — inferred, General Purpose LLMs — unknown, GPT-5.2 — inferred, Jasper AI Engine — inferred, Jasper AI Engine (LLM routing multi-model) — inferred, Jasper AI Engine (LLM-agnostic routing) — inferred, Jasper AI Engine (Multi-LLM) — inferred, Jasper AI Engine (Multi-model LLM Routing) — inferred, Jasper Engine (LLM-Optimized Architecture) — inferred, Jasper Engine (multi-LLM routing) — inferred, Jasper Engine (Multi-model routing) — inferred, Jasper's LLM-Optimized Architecture (Multi-LLM Routing) — inferred, Jasper's LLM-Optimized Architecture (Multiple LLMs) — inferred, LLM Routing — inferred, LLM Routing (Multi-Model Engine) — inferred, LLM Routing (Multi-model) — inferred, LLM Routing & Maintenance (multiple fine-tuned models) — inferred, LLM Routing & Maintenance (Several LLMs) — inferred, LLM-agnostic / Multi-LLM Routing — inferred, LLM-agnostic / Multi-model routing — inferred, LLM-agnostic architecture — inferred, LLM-agnostic architecture / several large language models — inferred, LLM-Optimized Architecture — inferred, LLM-Optimized Architecture (Multi-LLM) — inferred, LLM-Optimized Architecture (Multi-Model Routing) — inferred, LLM-Optimized Architecture (Multi-Model) — inferred, LLM-Optimized Architecture (Multiple LLMs) — inferred, LLM-Optimized Architecture (Multiple Models) — inferred, LLM-Optimized Multi-Model Architecture — inferred, multi-LLM engine — inferred, Multi-LLM Routing (Proprietary Engine) — inferred, Multiple LLMs (LLM-Optimized Architecture) — inferred, Multiple LLMs (routed) — inferred, Multiple models (LLM-agnostic / proprietary routing) — inferred, proprietary marketing knowledge layer atop general purpose LLMs — inferred and proprietary marketing knowledge layer sitting atop general purpose LLMs — inferred. "Disclosed" means the vendor says so in public; "inferred" means it was derived from documentation, headers or release notes. Context window: Not published. Other stack signals: AI Content Generation, AI Agents and SEO Optimizer.

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