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  1. Home
  2. Models
  3. Mercury 2.5
Updated Sep 22, 2026
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Openings

How Mercury 2.5 starts an answer

The first lines of 5 of its 12 written answers. Formatting stripped, words untouched.

Michelin Star Recipe Design

Design an innovative recipe for a multi-component dish worthy of a Michelin 3-star restaurant. The recipe should feature an unusual…

827 words
Dish Title: Chronos and Mycelium Conceptual Narrative This dish explores the intersection of time, decay, and rebirth. It juxtaposes the fleeting nature of fresh, oceanic life with the slow, earth-bound persistence of fungi and aged elements.
Read the full answer

Advanced Investment Memo (IC Memo)

You are writing an internal investment committee memo for a long/short equity fund. Company (fictional): LedgerLift (ticker: LLLT) – B2B…

735 words
To: Investment Committee From: Equity Research Date: September 22, 2026 Subject: LedgerLift (LLLT) – Initiation of Coverage Recommendation & Thesis Recommendation: Long 12-Month Price Target: $55 – $68 Thesis: LedgerLift offers a rare combination of high-quality SaaS unit economics (NRR 123%, CAC payback 18mo) and…
Read the full answer

Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

672 words
Critical Analysis of Collaborative Editor Architecture Below is a detailed breakdown of failure modes, race conditions, and scaling bottlenecks, along with proposed solutions and their trade-offs.
Read the full answer

Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

660 words
Inventing the transistor in 1920 would have fundamentally reshaped the 20th century, compressing the digital age by roughly two decades. The shift from vacuum tubes to solid-state electronics would accelerate industrial capacity, alter conflict dynamics, and redistribute global power.
Read the full answer

Advanced Longevity Plan (Biohacker)

Develop a comprehensive, cutting-edge 3-month longevity plan for a biohacker aiming to optimize longevity, physical and cognitive…

610 words
3-Month Biohacking Longevity & Performance Plan Disclaimer: I am an AI, not a physician or certified health professional. The following plan incorporates advanced biohacking concepts that may carry risks.
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Compare Mercury 2.5

Mercury 2.5 vs Ox Alpha20 shared prompts · Landed Aug 2026
Mercury 2.5 vs MiniMax M320 shared prompts · Landed Jun 2026
Mercury 2.5 vs Ling 3.0 Flash Fin (free)20 shared prompts · Landed Sep 2026
Mercury 2.5 vs Muse Spark 1.320 shared prompts · Landed Sep 2026
Mercury 2.5 vs Gemini 3.8 Flash20 shared prompts · Landed Sep 2026
Mercury 2.5 vs Muse Spark 1.3 Contributor20 shared prompts · Landed Sep 2026
Mercury 2.5 vs Grok 4.620 shared prompts · Landed Aug 2026
Mercury 2.5 vs Dots3-Note Preview20 shared prompts · Landed Aug 2026
Mercury 2.5 vs Seed 2.0 Code20 shared prompts · Landed Aug 2026
Mercury 2.5 vs Seed 2.1 Turbo20 shared prompts · Landed Aug 2026
Mercury 2.5 vs Gemini 3.7 Flash20 shared prompts · Landed Aug 2026
Mercury 2.5 vs Gemini 3.6 Flash20 shared prompts · Landed Jul 2026

Prompts Mercury 2.5 answered

  • Startup Pitch Teardownreasoning
  • Mario Level UI Recreationweb design
  • Advanced Investment Memo (IC Memo)financial modeling
  • Michelin Star Recipe Designplanning
  • Beginner's Longevity Planreasoning
  • Ethical Dilemma with Stakeholdersreasoning

Alternatives to Mercury 2.5

Mercury 2.5 is good. These would like a word anyway.

MiMo-V2.6-Flash logo
MiMo-V2.6-Flashxiaomi
Grok 4.7 logo
Grok 4.7xai
GLM 5.3 FlashX logo
GLM 5.3 FlashXzhipu
Ternary Bonsai 2 27B logo
Ternary Bonsai 2 27Bprism-ml
Ling 3.0 Flash VL (free) logo
Ling 3.0 Flash VL (free)inclusionai
DeepSeek V4.1 Flash logo
DeepSeek V4.1 Flashdeepseek
Nex-N2.5-Mini (free) logo
Nex-N2.5-Mini (free)nex-agi
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Mercury 2.5

Mercury 2.5

Inception Mercury 2.5 is a diffusion-based language model for text and code generation, with a 260K context window on OpenRouter.

OpenRouterDocs
Provider
Inception
Released
2026-09-08
Size
LARGE
Free API (OpenRouter)
No
Per 1M tokens
$0.04 in · $0.15 out
Rival’s tab
$0.0038
20/20 receipts survived

Free API availability

No free endpoint for Mercury 2.5 was found in Rival’s OpenRouter listings. Other providers or chat apps may have separate free offers.

Provider data: 22 Sep 2026 · OpenRouter usage limits

View API options↗
Get API accessProvider and language code samples
Provider
fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"inception/mercury-2.5"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Favorites

The Matrix

Movie

The Matrix

19998.3
Abbey Road

Album

Abbey Road

The Beatles
The Great Gatsby

Book

The Great Gatsby

F. Scott Fitzgerald
Tokyo

City

Tokyo

Japan
Minecraft

Game

Minecraft

Action, Arcade4.4

Model Responses

15 outputs · $0.0036 tracked across 15 receipts

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Mercury 2.5 vs Ox Alpha

Real outputs compared side by side

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Best AI for Creative Writing

A stand-up set with puns banned, a manifesto against CAPTCHA, an interview wi...