LangChain vs Aster

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

LangChain compared with Aster
Detail	LangChain	Aster
What it does	The open agent platform to own your intelligence	Intelligent Auto Routing
Stage	Established	Growing
Founded	2023	Not given
Based in	US	Not given
Pricing model	Not given	usage-based
Pricing	Developer plan is free for solo users with up to 5k base traces per month, then pay-as-you-go. Plus plan costs $39/seat/month with 10k base traces included. Enterprise plan offers custom pricing with advanced options.	aster-work: $0.40 input / $0.80 output per million tokens. aster-code: $0.80 input / $1.60 output per million tokens. No subscription or seat fees. Prepaid credits start at $5 with no expiry. Routing included in product rates.
Key features	Agent observability with step-by-step tracing Agent evaluation and scoring Agent deployment infrastructure Production monitoring with online evaluations Autonomous agent improvement with Engine Secure sandbox execution for agent-generated code LLM Gateway for model call control No-code agent builder Fleet Open source frameworks for agent development	Task-aware model routing Curated model collection
What makes it different	Comprehensive platform covering the entire agent development lifecycle from building to monitoring Open source frameworks with options from quick-start to low-level control Built-in observability and evaluation capabilities integrated into the platform Support for long-running autonomous agents with Deep Agents framework	Reinforcement learning router trained on real task data 97.5% lower token cost vs frontier models Same product name regardless of underlying model
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	87 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	56	0
Citation Flow (Majestic)	64	11
Referring domains (Majestic)	28586	23

5 details filled in for both companies.

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