Exa vs Flagsmith
Exa and Flagsmith are both developer tools tools. Exa is aimed at developers and enterprise, while Flagsmith is aimed at developers and small businesses. Both have a free plan.
Web search and content API built for AI agents and LLM apps
Open-source feature flags and A/B tests, cloud or self-hosted
| Pricing | Freemium | Open source · $45 |
| Starting price | Not published | $45/mo |
| Free plan | Yes | Yes |
| Free trial | — | 14 days |
| Built for | Developers, Enterprise, Small businesses | Developers, Small businesses, Enterprise |
| Platforms | web | web |
| Country | US · 2021 | GB |
| Rating | — | — |
Choose Exa if
Developers and AI teams who need a fast, controllable web search and content layer for agents, RAG or research products.
- Free $10 monthly credit grant with no card required
- Lite search at $4 per 1,000 requests suits high-volume agents
- Highlights cut token usage and LLM costs compared with full pages
Look elsewhere if: Non-technical users who want a finished answer engine or chat app rather than an API (Perplexity, You.com).
Choose Flagsmith if
Engineering teams that want open-source, self-hostable feature flags with optional cloud hosting and built-in experiments.
- Open source under BSD-3-Clause with a real self-hosting path
- Unlimited flags, environments and segments on every plan
- Wide SDK coverage including mobile and Flutter
Look elsewhere if: Teams that want flags bundled with product analytics or a large enterprise vendor ecosystem (PostHog, LaunchDarkly).
Exa vs Flagsmith pricing
Exa
- Free$0$10 in credits every month plus a one-time $10 onboarding bonus
- Search Lite$4/1,000 requestsUp to 10 results per request; $1 per 1k extra results
- Search Auto$7/1,000 requestsUp to 10 results per request; AI summaries $1 per 1k pages
- Deep Search$12/1,000 requestsdeep-lite (about 4 seconds) and deep (4 to 15 seconds) types
- Contents$1/1,000 pagesPer content type; prepaid credits, no subscription or minimum
Flagsmith
- Free$050k requests/mo, 1 team member, 1 project
- Start-Up$45/mo$40/mo billed yearly; 1M requests, 3 members, A/B testing
- Scale-Up$300/mo$250/mo yearly; 5M requests, SAML SSO, roles, audit logs
- EnterpriseCustomPrivate cloud or on-prem, SLA, onboarding, priority support
Exa · Key features
- Search API with lite, auto, deep-lite and deep types on one independent index
- Dynamic Highlights that pass only the most relevant tokens to the model
- Contents API for full page text, highlights and AI summaries
- Agent API for cited research, list building and enrichment with structured output
- Coverage of people, companies, code, papers, ecommerce listings and local businesses
- Monitors for recurring searches and Websets for verified datasets
Cons
- No flat monthly plan, so spend rises directly with traffic
- Websets API needs a separate paid Websets plan and credits
- Benchmark leadership is reported by Exa itself
Flagsmith · Key features
- Feature flags and remote config with user, segment and percentage targeting
- Bayesian A/B experiments built directly on existing flags
- Scheduled flags, multivariate flags and change requests
- SDKs for JavaScript, React, iOS, Android, Flutter, Python, Go and Rust
- OpenFeature provider for cloud, private cloud and self-hosted setups
- Audit logs, roles and permissions for governance
Cons
- Free cloud plan allows only one team member
- SSO, roles and audit logs require Scale-Up at $250 or more a month
- Experiments v1 supports one primary metric per test
Exa vs Flagsmith: FAQ
Do Exa and Flagsmith have a free plan?
Yes, both Exa and Flagsmith have a free plan; paid plans add more usage and features.