--- title: "Inception: Mercury 2.5 — unrated, priced in this catalogue · Undominated.ai" canonical: https://undominated.ai/models/inception__mercury-2.5/ description: "Inception: Mercury 2.5: $0.040/M in, $0.150/M out. No independent quality score in this catalogue — unrated, not ranked, not scored zero." --- # Inception: Mercury 2.5 — unrated, priced in this catalogue · Undominated.ai > Inception: Mercury 2.5: $0.040/M in, $0.150/M out. No independent quality score in this catalogue — unrated, not ranked, not scored zero. [Check base rates for this workload](/check/inception__mercury-2.5/) [Cheaper alternatives](/alternatives/) [Family](/families/mercury/) [Compare models](https://undominated.ai/compare/?models=inception%2Fmercury-2.5) Comparison context Choose up to three standard models in Compare. Requirements and prompt length apply in Compare. This page keeps its stated price basis and workload controls. MODEL PROOF # Mercury 2.5 Inception · 08 Sept 2026 Balanced Summarise Chat Code gen Agentic NOT INDEPENDENTLY RATED ## No independent LMArena score is published for this model. **$0.068** / 1M tokens Balanced · 3 tokens in per 1 out Evidence as of 23 Sept 2026 [openrouter/models](https://openrouter.ai/api/v1/models) Independent LMArena score Not independently rated Context window 260K Maximum output 65.54K Input modalities text Output modalities text Published input price $0.040 / 1M tokens Published output price $0.150 / 1M tokens Pricing kind fixed Inspect [complete billing conditions](#billing-details) and endpoint terms below. Every price dimension · USD per million tokens | Input | $0.040 /M | | --- | --- | | Output | $0.150 /M | | Cached input | $0.0040 /M | | Cache write | Unknown /M | | Cache write 1h | Unknown /M | | Reasoning | Unknown /M | ### Who sells it The same weights, different shops. Cheapest is not like-for-like when serving precision differs. 1 provider offers · rates, limits and conditions Rates are USD per million tokens. Endpoint terms can differ even when the quoted price and precision match. A listed parameter is a provider declaration, not a task-success test. | Seller | Input | Output | Precision | Uptime (1d) | | --- | --- | --- | --- | --- | | Seller Inception inception Endpoint terms Cached input /M $0.0040 Context limit 260,000 tokens Output limit 65,536 tokens Tools Listed by endpoint Reasoning Listed by endpoint Promotional discount 80% · already included in these rates Uptime · last 30 minutes 100.00% | Input $0.040 | Output $0.150 | Precision undeclared | Uptime (1d) 99.97% | ### Independent scores No independent benchmark has measured this model. Unrated is not a score of zero. ### Capability | Context window | 260K | | --- | --- | | Max output | 66K | | Input modes | text | | Tool use | yes | | Reasoning | optional | | Open weights | Unknown | ### Provenance | Price source | [openrouter.ai](https://openrouter.ai/api/v1/models) | | --- | --- | | Fetched | 2026-09-23 | | Quality data | unrated | Mercury 2.5 is the fastest reasoning LLM, and the latest diffusion LLM (dLLM) from Inception. Instead of generating tokens sequentially, Mercury 2.5 produces and refines multiple tokens in parallel, achieving... ## Questions this page answers What does Mercury 2.5 cost? $0.040/M in, $0.150/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription. Does Mercury 2.5 have an independent quality score? Mercury 2.5 has no independent quality score in this catalogue. Unrated is not a score of zero. What beats Mercury 2.5? Mercury 2.5 has no independent quality score. Unrated is not a score of zero. Does this page use Artificial Analysis scores for Mercury 2.5? No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated. Does a missing score mean Mercury 2.5 scored zero? Unrated is not a score of zero. MODEL MONUMENT ## Save or share this proof Download proof card · 1200 × 630 Preview and more sharing options Inception: Mercury 2.5. Balanced workload. Not independently rated. Evidence as of 23 Sept 2026. Copy model link Download square card · 1080 × 1080 Copy landscape image Share landscape card ## Related No independent quality score, so there is no dominator to name. Unrated is not a clean bill of health. - Same vendor [Mercury 2](/models/inception__mercury-2/) - Inception models [Inception](/providers/inception/) ## Badge The verdict as one SVG, for a README or a docs page. It states this model's dominance status at the balanced workload on the LMArena lens, with the date it was computed, and it is rebuilt with the catalogue — so it changes when the verdict changes, including to one you would rather it did not. Markdown Copy [![Mercury 2.5 — Undominated.ai dominance verdict](https://undominated.ai/badge/inception__mercury-2.5.svg)](https://undominated.ai/models/inception__mercury-2.5/) HTML Copy Mercury 2.5 — Undominated.ai dominance verdict Direct file: [https://undominated.ai/badge/inception__mercury-2.5.svg](https://undominated.ai/badge/inception__mercury-2.5.svg) — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never older than the last deploy. ## Continue your investigation - [Explore model families](/families/) - [Compare a shortlist](/compare/) - [Check a model](/check/) - [Understand the evidence](/methodology/)