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  1. Models
  2. Text
  3. Inception

Mercury 2.5 Preview

Mercury 2.5 Preview is Inception's latest and most intelligent diffusion language model. Instead of generating tokens strictly one at a time, it produces and refines multiple tokens in parallel, reaching up to 1,107 tokens per second on standard GPUs. It delivers a 10+ point intelligence gain over Mercury 2, with tunable reasoning, parallel tool calls, schema-aligned JSON output, and a 260K context window. It is built for latency-sensitive production work such as search agents, voice pipelines, customer support, rapid coding iteration, and coding subagents.

  • Reasoning
  • Tool Calling
  • Parallel Tool Calls
  • Structured Output

Added Sep 1, 2026

Pricing

Auto routing · per 1M tokens
Input
$0.04
Output
$0.15
Cache read
$0.0040
Compare provider prices

Specifications

Context window
260K
Max output
65.5K
Avg output (7d)
936 tokens
Longer than 70% of models

Benchmarks

No public benchmark scores for this model yet.

Providers

Auto routing is available for this model. Explicit provider selection is not available.

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Reliability

Related text models

Compare Mercury 2.5 Preview with similar models from the same provider or model family.

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Mercury 2

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Inception Labs' fastest reasoning model with tool calling and structured outputs support.

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DeepSeek V4.1 Flash Heretic Thinking

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OrcaCyber Zero 1.5

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