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Mercury 2.5 Preview vs Mercury 2.5

Detailed technical comparison between Mercury 2.5 Preview (Inception AI) and Mercury 2.5 (Inception AI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

Mercury 2.5 Preview: 6 WinsvsMercury 2.5: 0 Wins
Context Leader

Tie

Equal Capacity
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

Tie

Equal Pricing
Inception AIactive

Mercury 2.5 Preview

Mercury 2.5 Preview is an advanced artificial intelligence model engineered by Inception AI. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, Mercury 2.5 Preview represents a key architectural iteration in the Inception AI model family. First released in 2026-08-31, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 260,000 tokens (approximately 347 words), Mercury 2.5 Preview processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View Mercury 2.5 Preview Full Specs →
Inception AIactive

Mercury 2.5

Mercury 2.5 is an advanced artificial intelligence model engineered by Inception AI. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, Mercury 2.5 represents a key architectural iteration in the Inception AI model family. First released in 2026-09-08, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 260,000 tokens (approximately 347 words), Mercury 2.5 processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View Mercury 2.5 Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationMercury 2.5 PreviewMercury 2.5
ProviderInception AIInception AI
Context Window260,000 tokens260,000 tokens
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelmanaged apimanaged api
Production StabilityStable GA (est.)Stable GA (est.)
API AvailableYesYes
Released Date2026-08-312026-09-08

API Pricing Comparison

Input Price per Million Tokens

Mercury 2.5 Preview

$0.04

Mercury 2.5

$0.04

Output Price per Million Tokens

Mercury 2.5 Preview

$0.15

Mercury 2.5

$0.15

💡 Cost Ratio: Both models offer identical input token pricing ($0.04 / MTok).

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
86.4%vs78.4%+8.0% Mercury 2.5 Preview
Mercury 2.5 Preview 🏆
Mercury 2.5
HumanEvalPython coding & logic synthesis
88.2%vs76.6%+11.6% Mercury 2.5 Preview
Mercury 2.5 Preview 🏆
Mercury 2.5
MATHComplex mathematical problem solving
78.0%vs53.8%+24.2% Mercury 2.5 Preview
Mercury 2.5 Preview 🏆
Mercury 2.5
GPQAGraduate-level expert reasoning
52.0%vs39.2%+12.8% Mercury 2.5 Preview
Mercury 2.5 Preview 🏆
Mercury 2.5
HellaSwagCommonsense reasoning and inference
88.0%vs81.4%+6.6% Mercury 2.5 Preview
Mercury 2.5 Preview 🏆
Mercury 2.5
MT-BenchMulti-turn conversation flow quality
9.1%vs8.4%+0.7% Mercury 2.5 Preview
Mercury 2.5 Preview 🏆
Mercury 2.5

Mercury 2.5 Preview Quirks & Gotchas

No developer gotchas reported.

Mercury 2.5 Quirks & Gotchas

No developer gotchas reported.

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