Kyma API review: One pay-per-use API account for chat, reasoning, image, video and audio models
One pay-per-use API account for chat, reasoning, image, video and audio models
Prices not verified, free plan: yes.
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What Kyma API does
Kyma API is a model access service for developers who want to call many AI models through a single account and a single balance. The catalog spans chat, reasoning, image, video and audio models, and the pricing page says 119 models share that balance. Requests can go through OpenAI-style or Anthropic-style endpoints, so an existing SDK can be pointed at Kyma by changing the base URL and the key.
The site publishes a rate for each model in the unit that model is sold by: per million tokens for language models, per image, per second for video, and per minute, per 1K characters or per song for audio. Language model tables show input, cached input and output rates side by side, and many rows also carry a measured uptime figure. The vendor also describes automatic fallback when a compatible route is available.
Billing is pay per use with no subscription, and no monthly or yearly plan price is published. It applies to eligible free-tier models: the page says 48 of 119 qualify, and other media models need a top-up. Image and video jobs reserve credit before processing, and failed jobs are refunded or their hold is released.
Beyond the API, Kyma lists a model catalog, rankings, a comparison page and an MCP server that links an AI assistant to the live catalog. The homepage names compatible clients including Cursor, Claude Code, Cline, Roo Code, Aider and Continue. Rate limits scale by tier.
- One key and balance for 119 models
- Chat, reasoning, image, video and audio models
- OpenAI- and Anthropic-compatible endpoints
- Per-model published prices with cached-input rates
- Measured uptime per model
- Automatic fallback when a compatible route is available
- MCP server for connecting assistants to the catalog
- Model rankings and comparison pages
Pros and cons
Pros
- One account, key and balance for 119 models across chat, reasoning, image, video and audio
- Works with existing OpenAI or Anthropic SDKs by changing the base URL
- Prices are published per model, including cached-input rates for many language models
- Measured uptime is listed per model, and automatic fallback is described when a compatible route exists
Cons
- No subscription or fixed monthly plan is offered, so costs vary with usage
- The signup credit is limited to eligible models, 48 of 119, and other media models need a top-up
- Some models show no uptime figure or no published cached-input rate
- Specific rate limit numbers are not stated; only that they scale by tier
- Only API access is described; no desktop or mobile apps are listed
Our take
Kyma API fits developers who want to try or switch between many models without juggling separate accounts, billing setups or endpoints, and who want per-model prices and measured uptime visible before they commit. Pay-per-use billing suits variable workloads. It is a weaker match for teams that need a fixed monthly price, since no subscription plans are published, or for anyone looking for a desktop or mobile app, because the pages describe an API and web surfaces only. The signup credit is small and covers just part of the catalog, so regular use means adding credit. Specific rate limit numbers are not published on the pages provided.
Comparisons and lists with Kyma API
Coming soon
Coming soon — we are writing comparisons that include Kyma API.
Kyma API pricing
Prices not verified — the official pricing could not be confirmed; check the vendor's site: official pricing page.
Frequently asked questions
Does Kyma API charge a subscription?
No. The pricing page describes pay-per-use pricing with no subscription and one balance for 119 models.
Can I use my existing OpenAI or Anthropic SDK?
Yes. The homepage shows the OpenAI SDK pointed at the Kyma base URL and lists OpenAI and Anthropic compatible endpoints.
What happens if an image or video job fails?
The pricing page says failed jobs are refunded, and that credit reserved for asynchronous jobs is released when they fail.
Which models does the free credit cover?
Eligible free-tier models, 48 of 119 today. Other media models require a top-up.
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