Mercury 2.5

Released
2026-09-08
Last refreshed
2026-10-19
Status
Researched 1d ago
ProprietaryCommercial use: restrictedRAGAgentsLong contextClassificationJSON / Tool use
Inception Labs releases · 3 in the last 12 monthsChangelog →
Specifications
Family
Mercury
Released
2026-09-08
Context
260K
Max output
64K
Openness
Proprietary
License
ProprietaryRestricted
Weights
Not released
Code
Unknown
Created by

Inception Labs is an AI company building diffusion-based large language models (dLLMs), a fundamentally different archit

San Francisco, CA
Founded 2024
Website
Pricing
Output / 1M
$0.150
Input / 1M
$0.040

Cheapest of 3 routes · OpenRouter

About

Mercury 2.5 is Inception Labs' diffusion LLM GA (API id mercury-2.5). 260K context, 65,536 max output. Tunable reasoning, tool calling, structured outputs. Distinct from Mercury 2.5 Preview. Docs list $0.20/$0.75 per 1M; launch promo $0.04/$0.15 still on API/OR.

Providers(3)

Compare all 3

Compare API pricing across 3 tracked provider routes for input and output tokens, batch, and cached reads when available.

ProviderInput / 1MOutput / 1MCacheRoute
OpenRouter$0.040$0.150-
Serverless
Vercel AI Gateway$0.040$0.150read $0.004
Serverless
Inception$0.200$0.750read $0.020
Serverless
Scheduled retirement: November 15, 2026

Capabilities

ReasoningJSON / Tool useStructured Outputs

Benchmark peer barsfor RAG

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-2.5inception/mercury-2.5Mercury 2.5