Directory
Google AI Studio / Gemini API
Model provider API with free tier
Free tier + paidModel APIs, routers & observabilityai.google.dev
What it is
Google's developer surface for Gemini: AI Studio is the browser playground and key issuer, the Gemini API is the endpoint. Uniquely among frontier labs it ships a genuinely usable free tier, plus huge context windows and native multimodal input across text, image, audio and video.
Why it earns a slot
You can ship a working prototype without entering a credit card, and Flash-tier pricing stays cheap when you scale. Best option when your app needs to read PDFs, screenshots or video without a separate vision pipeline.
Know before you commit
Free-tier prompts and responses may be used to improve Google products and can be seen by human reviewers — never send customer data through an unpaid key. Paid-tier terms exclude training use.
Getting started
npm i @google/genai (or pip install google-genai)
Neighbourhood
How Google AI Studio / Gemini API sits against the rest of the atlas — swaps, companions and the tools builders actually save alongside it.
Instead of thisVercel AI SDKAnthropic API / Claude PlatformBraintrustFal.aiFireworks AIGroqHeliconeHugging Face Inference ProvidersLangChain
Named in the wiringModal
Also in Model APIs, routers & observability
Anthropic API / Claude Platform
platform.claude.comNot yet swept
Frontier model provider API
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Per token. Opus 5 $5/$25 per M in/out; Sonnet 5 $2/$10; Haiku 4.5 $1/$5; Fable 5 and Mythos 5 $10/$50. Batch API 50% off; cache reads 0.1x input.
Open dossier
Braintrust
braintrust.devNot yet swept
LLM eval and experiment platform
Free tier + paidModel APIs, routers & observability
Starter free ($10/mo model credits, 1GB data, 10k scores, 14-day retention), Pro $249/mo ($249 credits, 5GB, 50k scores), Enterprise custom. Overage $3-4/GB and $1.50-$2.50 per 1k scores.
Open dossier
Fal.ai
fal.aiNot yet swept
Generative media inference host
PaidModel APIs, routers & observability
Per output or per second for media models: images ~$0.02-$0.04 at 1MP, video $0.05-$0.40 per second. Serverless GPU rates $1.10-$8.50/hr with committed-use discounts.
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Fireworks AI
fireworks.aiNot yet swept
Open-model inference host
Free tier + paidModel APIs, routers & observability
Per token serverless across Standard/Priority/Fast tiers; embeddings $0.008-$0.10/M. On-demand GPUs billed per second: H100/H200 ~$7-8/hr, B200 ~$10-13/hr. Fine-tuning $0.50-$40 per M training tokens. $1 free credit.
Open dossier