Inception models
Inception builds diffusion language models (dLLMs), which produce and refine many tokens in parallel rather than one after another — a different generation mechanism from every other lab in this catalog. Zeplik carries Mercury 2.5, the newest of them, with a 260K window and tool calling, alongside Mercury 2.
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All 3 Inception models
Mercury 3General purpose
Mercury 3 is a diffusion-based language model from Inception, and the lab's most capable model to date.
1M ctx4.2 cr/M outOctober 2026
Mercury 2.5General purpose
Mercury 2.5 is the fastest reasoning LLM, and the latest diffusion LLM (dLLM) from Inception.
260K ctx1.8 cr/M outSeptember 2026
Mercury 2General purpose
Mercury 2 is an extremely fast reasoning LLM, and the first reasoning diffusion LLM (dLLM).
128K ctx9.0 cr/M outMarch 2026
Pricing at a glance
| Model | Context | Input cr/M | Output cr/M | Released |
|---|---|---|---|---|
| Mercury 3 | 1M | 1.2 | 4.2 | October 2026 |
| Mercury 2.5 | 260K | 0.48 | 1.8 | September 2026 |
| Mercury 2 | 128K | 3.0 | 9.0 | March 2026 |
Frequently asked questions
- Which Inception models can I use on Zeplik?
- Zeplik carries 3 Inception models: Mercury 3, Mercury 2.5 and Mercury 2. They all run in the same chat, so you do not need a separate Inception account or API key.
- How much do Inception models cost on Zeplik?
- Output tokens run from 1.8 to 9.0 credits per million depending on which Inception model you pick (raw provider rates $0.15 to $0.75 per million). 1 credit = $0.10, computed from the raw provider rate with a 1.20x margin.
- Which Inception model has the largest context window?
- Mercury 3, at 1M tokens (1,000,000). The context window covers the conversation plus any documents you attach.
- Do Inception models support images and tool calling?
- None of the 3 accept image input, and all of them support tool calling.
- Do I need a paid plan to use Inception models on Zeplik?
- All 3 need a paid plan (Plus or above). Usage is then billed in credits from your monthly allowance.
- What is the newest Inception model on Zeplik?
- Mercury 3, released October 2026. Mercury 3 is a diffusion-based language model from Inception, and the lab's most capable model to date.
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