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Best Alternatives to Mercury 2.5 (2026)

Looking for an alternative to Mercury 2.5 by Inception? Here are the top 10 alternatives ranked by our composite scoring system across benchmarks, community sentiment, pricing, and adoption data.

Last updated: just now

You are looking at alternatives to:

Mercury 2.5

Inception

LLM category
61

Score

1

by meta

90
+29 vs Mercury 2.5
33% pricier1.0M context+ vision+ web search
2

by meta

90
+29 vs Mercury 2.5
33% pricier1.0M context+ vision+ web search
3
Muse Spark 1.3
Higher score

by meta

89
+28 vs Mercury 2.5
2733% pricier1.0M context+ vision+ web search
4
Muse Spark 1.2
Higher score

by meta

89
+27 vs Mercury 2.5
2733% pricier1.0M context+ vision+ web search
5
Muse Spark 1.1
Higher score

by meta

88
+27 vs Mercury 2.5
2733% pricier1.0M context+ vision+ web search
6

by Google

88
+27 vs Mercury 2.5
1150% pricier1.0M context+ vision+ web search
7

by Google

87
+26 vs Mercury 2.5
1150% pricier1.0M context+ vision+ web search
8

by OpenAI

87
+26 vs Mercury 2.5
300% pricier1.1M context+ vision+ web search
9

by OpenAI

87
+26 vs Mercury 2.5
300% pricier1.1M context+ vision+ web search
10
Gemini 3.8 Flash
Higher score

by Google

87
+26 vs Mercury 2.5
2400% pricier1.0M context+ vision+ web search
Frequently Asked Questions

By our composite score, the top-ranked alternative is Muse Spark 1.3 Contributor by meta at 90 (+29 vs Mercury 2.5's 61). Of the 10 alternatives here, 10 score higher than Mercury 2.5, and Muse Spark 1.3 Contributor offers a 1.0M context.

Among the priced alternatives, Muse Spark 1.3 Contributor has the lowest output cost at $0.20 per million tokens.

GPT-5.6 Luna Pro (batch) has the largest context window among these alternatives at 1.1M tokens, suited to long documents and large codebases.

Why Consider Alternatives to Mercury 2.5?

Among the 10 closest llm alternatives to Mercury 2.5 (composite score 61), 10 score higher, led by Muse Spark 1.3 Contributor at 90. 0 cost less per token, and the lowest-priced is Muse Spark 1.3 Contributor at $0.20 per million output tokens. Each card below breaks down how the alternative differs from Mercury 2.5 on price, context window, and capabilities.

Our rankings evaluate each model across multiple signals updated hourly, so you can be confident these recommendations reflect the latest performance data. Browse the full LLM rankings or use our pricing comparison tool to find the best fit for your budget.

10 Best Mercury 2.5 Alternatives & Competitors (2026) | LM Market Cap