Prompt engineering Pricing Comparison
12 providers compared by pricing model, free tiers, hosting options, and headquarters. Last updated September 2026.
11 with free tiers ยท 6 open source ยท 7 self-hostable ยท 2 European
| Provider | Pricing Model | Starting Price | Free Tier | Hosting | Open Source | HQ |
|---|---|---|---|---|---|---|
| Freemium | $59/mo | ✓ | Cloud + Self-hosted | ✓ | ๐บ๐ธ United States | |
| Freemium | Free tier, then $50/month | — | Cloud | — | ๐บ๐ธ United States | |
| — | — | ✓ | — | ✓ | ๐บ๐ธ United States | |
| Freemium | Free (open source library) | ✓ | Cloud + Self-hosted | ✓ | ๐ซ๐ท France | |
| Freemium | Free tier, then $99/seat/month | ✓ | Cloud + Self-hosted | — | ๐บ๐ธ United States | |
| Freemium | Free (Starter), then $7/month | ✓ | Cloud | — | ๐บ๐ธ United States | |
| Freemium | Free (1M BYOK requests/mo) | ✓ | Cloud + Self-hosted | — | ๐ณ๐ฑ Netherlands | |
| Freemium | Free (Developer), then $49/month | ✓ | Cloud + Self-hosted | ✓ | ๐บ๐ธ United States | |
| Freemium | Free (Community) | ✓ | Cloud + Self-hosted | ✓ | ๐บ๐ธ United States | |
| Freemium | $49/mo | ✓ | Cloud + Self-hosted | — | ๐บ๐ธ United States | |
| Freemium | Free tier, then EUR 4.99/month | ✓ | — | — | — | |
| Freemium | Free (100 monthly credits) | ✓ | — | ✓ | ๐บ๐ธ United States |
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Ordering is alphabetical, apart from featured listings, which are paid placement and are labelled as such. Nothing here is ranked by quality. Want to be featured?
Providers with free tiers
These prompt engineering providers offer free credits, free tiers, or open-source self-hosting options to get started without upfront costs.
The fastest way to build conversational AI agents
Eliminate risks of biases, performance issues & security holes in AI models. ...
From: Free (open source library)
Collaborate on prompts, evaluate, and optimize LLM-powered Apps with Klu.
From: Free tier, then $99/seat/month
Professional prompt editors with gpt-4-turbo/vision, gemini-pro and more mode...
From: Free (Starter), then $7/month
Sovereign AI gateway and LLMOps platform: model routing, prompt management, e...
From: Free (1M BYOK requests/mo)
Show all 11 providers with free tiers
AI gateway for routing to 1,600+ LLMs with observability, guardrails, and pro...
From: Free (Developer), then $49/month
Open-source CLI for testing, evaluating, and red-teaming LLM applications
From: Free (Community)
Visually manage prompts. Evaluate models. Log LLM requests. Search usage hist...
From: $49/mo
Structured prompt builder that treats prompts like code, with versioning and ...
From: Free tier, then EUR 4.99/month
Prototype and deploy agents powered by large language models.
From: Free (100 monthly credits)
Frequently asked questions
Which prompt engineering offer a free tier?
11 of the 12 prompt engineering listed offer a free tier or free credits. Examples: Dify, Fixie, Giskard, Klu, Knit. Use the "Free tier" filter above to see the full list.
Which prompt engineering are open source?
6 open-source options are listed. Examples: Dify, Fixie, Giskard, Portkey, PromptFoo. Most can be self-hosted alongside or instead of any managed offering.
Are there European prompt engineering?
Yes. 2 providers in this category are headquartered in Europe, including Giskard, Orq.ai. The European providers page has the full cross-category list with hosting regions.
Which prompt engineering can be self-hosted?
7 of the 12 listed support self-hosting, either as the primary deployment model or alongside a managed cloud offering. Examples: Dify, Giskard, Klu, Orq.ai, Portkey.
How to choose an inference API provider
The right provider depends on workload type, latency requirements, and budget. Most providers use pay-per-token pricing for LLMs and per-second GPU billing for custom models. Token-based pricing varies by model, so the cheapest provider for one model may not be cheapest for another.
Free tiers are useful for prototyping but often come with rate limits. For production, compare per-token costs for your specific model, cold start latency, rate limits, and whether the provider supports the models you need.
Teams with data residency requirements should check hosting options and provider headquarters. European providers like Giskard, Orq.ai keep data within EU jurisdiction. See the full European AI Infrastructure directory. Self-hostable options like Dify and Giskard give full control over data location.
For a deeper analysis, read AI Inference API Providers Compared on the blog. Pricing changes frequently, so verify current rates on each provider's website. Submit a correction.
Browse all Prompt engineering tools or explore the full AI Infrastructure Landscape.
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