How much does Mercury 2.5 cost per month?

For a chatbot handling 10,000 requests a day with 1,000 input and 500 output tokens each, Mercury 2.5 costs about $34.50 per month at Inception's list prices ($0.04 per 1M input tokens, $0.15 per 1M output tokens).

Does Mercury 2.5 support prompt caching?

Yes. Cached input costs $0.004 per 1M tokens, compared with $0.04 for regular input.

How long is Mercury 2.5's context window?

Mercury 2.5 accepts up to 260,000 tokens (260K) of context and returns up to 65,536 tokens per response.

Mercury 2.5 API Pricing

Inception · released Sep 8, 2026 · 260K context · API model ID mercury-2.5

Mercury 2.5 by Inception API pricing: $0.04 per 1M input tokens and $0.15 per 1M output tokens (provider list price via models.dev, Oct 10, 2026).

Prices

Mercury 2.5 prices, USD per 1M tokens
Price	USD per 1M tokens
Input	$0.04
Output	$0.15
Cache read	$0.004
Cache write	Not published

Inception's list price for its own API, as compiled by models.dev and checked Oct 10, 2026, 09:00 UTC. Prices on cloud platforms and resellers can differ. Provider documentation

Estimated monthly cost

$34.50

per month

per day: $1.15
per request: $0.000115

Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.

Compare this workload across models

Monthly cost by workload

Workload	Per month
Chatbot1,000 in / 500 out tokens, 10,000 requests a day	$34.50/mo
RAG8,000 in / 500 out tokens, 5,000 requests a day	$59.25/mo
Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input	$25.80/mo

Context and capabilities

Context: 260,000 tokens
Max output: 65,536 tokens
Input: text
Output: text
Knowledge cutoff: Nov 1, 2025
Open weights: No
Tool calling: Yes
Reasoning: Yes
Structured outputs: Yes

Capabilities and limits as listed by models.dev.

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Price history

No price changes since we started tracking on Oct 8, 2026.

Questions

How much does Mercury 2.5 cost per month?: For a chatbot handling 10,000 requests a day with 1,000 input and 500 output tokens each, Mercury 2.5 costs about $34.50 per month at Inception's list prices ($0.04 per 1M input tokens, $0.15 per 1M output tokens).
Does Mercury 2.5 support prompt caching?: Yes. Cached input costs $0.004 per 1M tokens, compared with $0.04 for regular input.
How long is Mercury 2.5's context window?: Mercury 2.5 accepts up to 260,000 tokens (260K) of context and returns up to 65,536 tokens per response.