SWE-1.5

Language Proprietary

300B

Parameters

About SWE-1.5

SWE-1.5 is an AI model developed by Cognition, in the language category, released in 2025, made available as a proprietary (API-only) model with 300B params.

On this page you'll find SWE-1.5's full specifications. Review provider pricing and benchmark scores below, or compare SWE-1.5 head-to-head with other language models.

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Frequently asked questions

What is SWE-1.5? ▶

SWE-1.5 is an AI model developed by Cognition, in the language category, released in 2025. It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.

Who created SWE-1.5? ▶

SWE-1.5 was developed by Cognition and released in 2025.

Is SWE-1.5 open source or proprietary? ▶

SWE-1.5 is a proprietary model. It is accessed through an API rather than by downloading the weights.

How much does SWE-1.5 cost? ▶

Pricing for SWE-1.5 depends on the provider. See the providers table on this page for the latest API rates.

How does SWE-1.5 perform on benchmarks? ▶

Benchmark scores for SWE-1.5 are listed on this page as they are published. You can compare it head-to-head with other models on the GenAIList compare tool.