Plasticity
High-throughput NLP APIs with on-prem option for defense and regulated data
What is Plasticity?
Plasticity provides cloud and on-prem NLP APIs: Sapien (entity, relationship, and context extraction with POS/syntax parsing), Cortex (knowledge graph queries over 240M+ facts), and Lingua (intent parsing and multi-turn dialogue). The company benchmarks Sapien at roughly 6,000 sentences per second, claiming over 80x faster throughput than competing solutions, and ranks top on open information extraction and slot-filling benchmarks. On-prem deployment makes it relevant for government, defense, legal, and medical use cases with data-residency constraints.
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Use cases to evaluate
Bulk entity and relationship extraction across millions of news or filings
Knowledge-graph enrichment using Cortex's 240M+ fact base
Building chatbot intent parsing with Lingua's dialogue engine
On-prem NLP for defense, legal, or medical corpora with data residency rules
Fit to evaluate
Intelligence and defense developers needing on-prem NLP at high throughput
Legal-tech engineers extracting parties, clauses, and dates from contracts
Health-tech teams parsing clinical notes under HIPAA constraints
Research and open-source projects qualifying for free API access
Business fit
Right for you if you need fast structured extraction from large text corpora and want pay-as-you-go pricing rather than per-seat SaaS. Skip if a general LLM API (Anthropic, OpenAI) already meets your accuracy and latency budget — Plasticity competes on raw throughput and on-prem control, not generative tasks. Best for developers building search, intelligence, or compliance pipelines over millions of documents. Government, defense, and regulated-industry teams gain most from the on-prem deployment path.
How to evaluate Plasticity
Use this category when software delivery speed, code review, or developer leverage is a business constraint.
Confirm the exact workflow
Map Plasticity to one concrete workflow first, such as bulk entity and relationship extraction across millions of news or filings. Avoid buying before the owner, trigger, output, and success metric are clear.
Check category fit
Test with your actual repository and review diff quality.
Compare practical alternatives
Shortlist Plasticity against Codex, Claude Code, Cursor so the decision is based on fit, effort, and workflow ownership rather than brand recognition alone.
Validate cost and rollout effort
Sapien Language Engine: free under 1K req/month, $2.00 per 1,000 req from 1K-500K, $1.50 per 1,000 from 500K-10M, $1.00 per 1,000 above 10M/month. Cortex Knowledge Graph: free under 1K req/month, $3.00 per 1,000 from 1K-500K, $2.00 per 1,000 from 500K-10M, $1.50 per 1,000 above 10M/month. Free API access available for research and approved open-source projects. Also confirm implementation time, support needs, and whether the technical setup matches your team.
Compare Plasticity with alternatives
Use this quick comparison before booking demos or moving data into a new system.
| Primary workflow | Bulk entity and relationship extraction across millions of news or filings, Knowledge-graph enrichment using Cortex's 240M+ fact base |
|---|---|
| Best-fit team | Intelligence and defense developers needing on-prem NLP at high throughput, Legal-tech engineers extracting parties, clauses, and dates from contracts |
| Implementation effort | Technical setup and maintenance profile |
| Pricing check | Usage-based |
| Closest alternatives | CodexClaude CodeCursorGitHub Copilot |
Plasticity pricing
| Model | Usage-based |
|---|---|
| Snapshot | Sapien Language Engine: free under 1K req/month, $2.00 per 1,000 req from 1K-500K, $1.50 per 1,000 from 500K-10M, $1.00 per 1,000 above 10M/month. Cortex Knowledge Graph: free under 1K req/month, $3.00 per 1,000 from 1K-500K, $2.00 per 1,000 from 500K-10M, $1.50 per 1,000 above 10M/month. Free API access available for research and approved open-source projects. |
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Common questions about Plasticity
What is Plasticity?
Plasticity provides cloud and on-prem NLP APIs: Sapien (entity, relationship, and context extraction with POS/syntax parsing), Cortex (knowledge graph queries over 240M+ facts), and Lingua (intent parsing and multi-turn dialogue). The company benchmarks Sapien at roughly 6,000 sentences per second, claiming over 80x faster throughput than competing solutions, and ranks top on open information extraction and slot-filling benchmarks. On-prem deployment makes it relevant for government, defense, legal, and medical use cases with data-residency constraints.
What is Plasticity used for?
Common use cases: Bulk entity and relationship extraction across millions of news or filings; Knowledge-graph enrichment using Cortex's 240M+ fact base; Building chatbot intent parsing with Lingua's dialogue engine; On-prem NLP for defense, legal, or medical corpora with data residency rules.
How much does Plasticity cost?
Sapien Language Engine: free under 1K req/month, $2.00 per 1,000 req from 1K-500K, $1.50 per 1,000 from 500K-10M, $1.00 per 1,000 above 10M/month. Cortex Knowledge Graph: free under 1K req/month, $3.00 per 1,000 from 1K-500K, $2.00 per 1,000 from 500K-10M, $1.50 per 1,000 above 10M/month. Free API access available for research and approved open-source projects.
Who is Plasticity best for?
Plasticity fits Intelligence and defense developers needing on-prem NLP at high throughput, Legal-tech engineers extracting parties, clauses, and dates from contracts, Health-tech teams parsing clinical notes under HIPAA constraints, Research and open-source projects qualifying for free API access. Right for you if you need fast structured extraction from large text corpora and want pay-as-you-go pricing rather than per-seat SaaS. Skip if a general LLM API (Anthropic, OpenAI) already meets your accuracy and latency budget — Plasticity competes on raw throughput and on-prem control, not generative tasks. Best for developers building search, intelligence, or compliance pipelines over millions of documents. Government, defense, and regulated-industry teams gain most from the on-prem deployment path.
What are alternatives to Plasticity?
Common alternatives to Plasticity include Codex, Claude Code, Cursor, GitHub Copilot, Replit, Windsurf.