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Best Alternatives to GPT-5.6 Sol (2026)

Looking for an alternative to GPT-5.6 Sol by OpenAI? 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:

GPT-5.6 Sol

OpenAI

LLM category
89

Score

1

by Google

88
-1 vs GPT-5.6 Sol
91% cheaper
2

by OpenAI

88
-1 vs GPT-5.6 Sol
94% cheaper
3

by OpenAI

88
-1 vs GPT-5.6 Sol
94% cheaper
4
Gemini 3.7 Flash
Similar score

by Google

88
-1 vs GPT-5.6 Sol
81% cheaper
5
GPT-5.6 Luna Pro
Similar score

by OpenAI

88
-1 vs GPT-5.6 Sol
88% cheaper
6
GPT-5.6 Luna
Similar score

by OpenAI

88
-1 vs GPT-5.6 Sol
88% cheaper
7

by Google

88
-1 vs GPT-5.6 Sol
87% cheaper
8

by Google

88
-2 vs GPT-5.6 Sol
81% cheaper
9

by Google

87
-2 vs GPT-5.6 Sol
75% cheaper
10
Gemini 3.6 Flash
Similar score

by Google

87
-2 vs GPT-5.6 Sol
62% cheaper
Frequently Asked Questions

By our composite score, the top-ranked alternative is Gemini 3.7 Flash (batch) by Google at 88 (-1 vs GPT-5.6 Sol's 89). Of the 10 alternatives here, 0 score higher than GPT-5.6 Sol.

Among the priced alternatives, GPT-5.6 Luna Pro (batch) has the lowest output cost at $0.60 per million tokens (94% cheaper than GPT-5.6 Sol).

Why Consider Alternatives to GPT-5.6 Sol?

Among the 10 closest llm alternatives to GPT-5.6 Sol (composite score 89), 0 score higher. 10 cost less per token, and the lowest-priced is GPT-5.6 Luna Pro (batch) at $0.60 per million output tokens. Each card below breaks down how the alternative differs from GPT-5.6 Sol 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 GPT-5.6 Sol Alternatives & Competitors (2026) | LM Market Cap