Fireworks AI is one of the fastest OpenAI-compatible inference platforms for open weights. Llama 3.1 70B, Mixtral 8x22B, DeepSeek V3, Qwen 2.5, and a long tail of fine-tuned community checkpoints all sit behind a single API that responds in tens of milliseconds for the first token. The catch is that most WordPress AI plugins still pretend OpenAI and Anthropic are the only two providers in the world.

SleekAI does not. The provider configuration accepts any OpenAI-compatible base URL, so https://api.fireworks.ai/inference/v1 is a first-class citizen. Save the Fireworks key, set the model to something like accounts/fireworks/models/llama-v3p1-70b-instruct or accounts/fireworks/models/mixtral-8x22b-instruct, and the chat widget, mapped variables, display conditions, and logs work exactly the same as on a GPT-4o bot.

Each reply hits Fireworks directly from your WordPress server. No Sleek-hosted relay sits in between, so your billing dashboard at Fireworks shows the exact token counts you see in wp_sleek_ai_chats. Multibot lets you run a Llama 70B bot on docs and a smaller 8B variant on the marketing site, both billed against the same Fireworks account.

Open-weights inference used to mean self-hosting a GPU cluster or accepting brittle community endpoints. Fireworks AI changed that by serving Llama, Mixtral, DeepSeek, and a dozen other open models behind a single OpenAI-compatible API with throughput most teams cannot match in their own infrastructure. The result is that the price-performance frontier for chat moved away from closed models for a lot of real workloads, while the WordPress ecosystem stayed stuck routing every visitor question through GPT-4o because that is what most plugins ship with.

SleekAI removes that gap by treating Fireworks as an ordinary provider. Docs teams can run a 70B Llama bot for the price of a small GPT-4o bot. Marketing teams can pick Mixtral when the load spikes during a launch.

Platform teams can A/B test DeepSeek against Claude on real traffic without rebuilding the chat widget. Token logs in wp_sleek_ai_chats reconcile with the Fireworks dashboard, billing stays on one card, and switching providers is a dropdown rather than a migration. For a lot of WordPress sites that is the difference between a chatbot that ships and one that stays a proof of concept.