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Mercury 3

inception·inception/mercury-3·GA·Closed·mercury series·NEW
Reasoning model for deliberate analysis, multi-step problem solving, and tool use

Mercury 3 by inception is offered by 6 providers on this page. Its official list price is $0.10 per 1M input tokens and $0.35 per 1M output tokens. No paid channel is priced below the official list price. Prices vary about 2.0× across the providers that host it.

The context window is 1,000,000 tokens, with an output limit of 131,072 tokens. It supports reasoning, tool use, and structured output.

Specs & pricing

Input / output per 1M tokens
Official price·Inception
$0.10 / $0.35
Blended $0.16 · Cache read $0.01
Lowest paid·InceptionGateway
$0.10 / $0.35
Blended $0.16 · 2× spread
Context
1,000,000
Output limit
131,072
Knowledge cutoff
—
Released / updated
2026-10-19 / 2026-10-20
Capabilities
✓ Reasoning✓ Tool use✓ Structured output✓ TemperatureAttachments
Modalities
Text

Available at 6 providers6 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
InceptionOfficialGateway$0.10$0.35$0.01—1,000,000131,072
NanoGPTGateway$0.10$0.35$0.01—1,000,000131,072
Venice AIGateway$0.10$0.35$0.01—1,000,000131,072
Vercel AI GatewayCloud$0.10$0.35$0.01—1,000,000131,072
OpenRouterGateway$0.10$0.35$0.01—1,000,000131,072
Kilo GatewayGateway$0.20$0.70$0.02—1,000,000131,072

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = loweffort = mediumeffort = higheffort = none

1 / 6 providers expose no reasoning control (reasoning_options: []).

Your usage cost

1Inception · Official$26.70
2NanoGPT$26.70
3Venice AI$26.70
4Vercel AI Gateway$26.70
5OpenRouter$26.70
6Kilo Gateway$53.40
The cheapest paid channel is official.

Price historyone sample accumulated per data sync

Input list $0.10Output list $0.35Min blended $0.16

Price history accumulates from each data sync; currently only 1 sample(s) (2026-10-20). Each future sync adds a point, and once accumulated a line is drawn here.

Related models

Mercury 2.5same series$0.04 / $0.15Mercury 2.5 Previewsame series—Mercury Edit 2same series$0.25 / $0.75Qwen3.7 Flashcheaper alternative$0.03 / $0.13reBeam 1.0 501B A23Bcheaper alternative$0 / $0Nemotron 3.5 Super VL 120B A12Bcheaper alternative$0 / $0
Data partly from models.dev (MIT) · Inception official docs ↗