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Mercury 2.5

InceptionReleased Sep 8, 2026
Tool usePrompt cachingStructured output
Compare Mercury 2.5Count tokens for Mercury 2.5
Context
260K
Max output
66K
Serving providers
3
Cheapest input
$0.04 /1M
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day.

Benchmarks

independent evaluations · source: Artificial Analysis
Speed & latency
Output speed
799 t/s
tokens / second
Time to first token
3.68s
latency
Headline indices
Intelligence Index
12.3
of 100
Individual benchmarks · click a row for effort variants
BenchmarkBest scoreEffortCost / task
Automation Bench0.0default—
CritPt0%default—
GDPval (normalized)Frozen Aug 18, 20260%default—
Humanity's Last Exam12%default—
Long-Context Reasoning72%default—
Omniscience-39.5default—
Omniscience Accuracy0.2default—
Omniscience Non Hallucination0.2default—
SciCode39%default—
Terminal Bench400default—
Artificial Analysis last published scores for this benchmark on Aug 18, 2026. Scores here are frozen at that date, and models released since are not on it.

Pricing by serving provider

standard tier · per 1M tokens · click a provider to expand

Input pricing runs from $0.04 to $0.20 per 1M tokens across 3 providers, so the dearest route costs 400% more than the cheapest for the same model.

Serving providerInput /1MOutput /1MEndpoints
OpenRouterRouted quote$0.04$0.151
Standardinception/mercury-2.5
ComponentUnitStandard
Text cached in/1M tok$0.004
Text input/1M tok$0.04
Text output/1M tok$0.15
VercelVercel reseller quote$0.04$0.151
Inception$0.20$0.751

Price history

listed seller prices, input and output per 1M tokens
Input Output
$0.00$0.20$0.40$0.60$0.80Sep 13Sep 17$0.75$0.20

Cost calculator

estimate your monthly spend on this model
$20
estimated / month

Model IDs

copy the exact identifier for your platform
inception/mercury-2.5inception/mercury-2.5inception/mercury-2.5

Frequently asked questions

Mercury 2.5 pricing, context and availability

How much does Mercury 2.5 cost?

Mercury 2.5 costs $0.04 per 1M input tokens as an OpenRouter routed quote, while Inception lists it at $0.20 per 1M input, and $0.15 per 1M output tokens as an OpenRouter routed quote, while Inception lists it at $0.75 per 1M output. An OpenRouter routed quote is the price of whichever upstream provider OpenRouter prefers today, so it moves day to day. Across 3 serving providers, input prices range from $0.04 to $0.20 per 1M tokens.

What is the context window of Mercury 2.5?

Mercury 2.5 accepts up to 260K tokens of context and can return up to 66K output tokens.

Which providers serve Mercury 2.5?

Mercury 2.5 is available from 3 serving providers, each with its own pricing and model ID. OpenRouter is currently the cheapest, as a routed quote.

What can Mercury 2.5 do?

Mercury 2.5 supports tool use, prompt caching and structured output.

Other Inception models

compare pricing across the Inception lineup
Mercury 2$0.25/1M · 3 providersMercury 2.5 Preview$0.04/1M · 1 providerMercury Coder Small$0.25/1M · 1 providerMercury Edit 2$0.25/1M · 1 provider
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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