Mercury 2.5 Preview
Mercury 2.5 Preview is worth evaluating for coding, rag, and agents when its provider route and context window match the workload.
Use it for
- Teams evaluating coding, rag, and agents
- Workloads that can use a 262k context window
- Buyers comparing 1 tracked provider route
Do not use it for
- Vision or document-understanding workloads
- Family
- Mercury
- Context
- 262k
- Specialization
- agentic
- Openness
- Proprietary
- Weights
- Not released
- Code
- Unknown
Inception Labs is an AI company building diffusion-based large language models (dLLMs), a fundamentally different archit
Cheapest of 1 route · OpenRouter · cache read $0.020
About
Inception Mercury 2.5 (Preview) is a reasoning diffusion LLM (dLLM) listed on Inception's models page as the lab's most intelligent reasoning dLLM at its lowest list price. First-party product page (inceptionlabs.ai/models, retrieved 2026-09-01): 256K context window; reasoning, tool use, and structured output; use cases rapid coding iteration, agents/subagents, customer support, and enterprise search. List pricing on that page: USD 0.20 / 1M input, USD 0.02 / 1M cached input, USD 0.75 / 1M output. Site banner: live on OpenRouter.
Top use-case fit: coding, agents, and build tasks
Coding
Included by capability and metadata signals in the decision map.
RAG
Included by capability and metadata signals in the decision map.
Agents
Included by capability and metadata signals in the decision map.
Provider price ladder
Compare API pricing across 1 providers for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Cache | Route |
|---|---|---|---|---|
| OpenRouter | $0.200 | $0.750 | read $0.020 | Serverless |
Capabilities
Benchmark peer barsfor Coding
No task-mapped benchmark peers are available for this model yet.
Migration checks
No linked migration route is available for this model yet.
API versions
mercury-2.5-previewInception Labs is an AI company building diffusion-based large language models (dLLMs), a fundamentally different archit
Cheapest of 1 route · OpenRouter · cache read $0.020