Model switching
const resp = await stratum.chat({
model: "anthropic/claude-sonnet-4.5",
messages: [{ role: "user", content: "Hello! Who are you?" }]
});OpenAI SDK compatible — migration is a one-line change.
One gateway. Every frontier model.
One key.
Every model.
Zero headaches.
Stratum plugs your product into 214 language models — text, vision, and audio — through a single OpenAI-compatible API. Switch providers with one line of config, not one quarter of vendor calls.
Sign up now and get 1 full day of free access to every AI feature. No credit card required.
$5 in credits after your free day · Set up in 5 minutes · Cancel anytime
$ curl https://api.stratum.ai/v1/chat/completions \
-H "Authorization: Bearer sk-stratum-…" \
-d '{"model":"anthropic/claude-sonnet-4.5"}'Security · Compliance · Guarantees
- 256-bit SSL End-to-end encryption
- SOC 2 Type II Independently audited
- PCI DSS Level 1 Payments via Stripe
- GDPR & CCPA Privacy compliant
- 30-day guarantee Money back, no questions
- 24/7 support Real humans, fast
214models in the catalog
38providers under the hood
99.98%uptime, trailing 12 months
412Btokens routed every month
(01) — Features
Less glue code between you and the model
-
01
Routing that just reroutes
When a provider errors out or stalls, your request automatically fails over to a healthy replica of the same model. Your users never notice — and your on-call phone stays quiet.
-
02
One invoice instead of ten
Provider consoles, currencies, and invoices roll up into a single balance with a per-project breakdown. Your finance team will actually thank you for this one.
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03
Caching that pays for itself
Repeated prompt segments are served from cache at up to 90% off. The savings show up as a real number in your monthly report — not as a promise in a sales deck.
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04
Private by default
Your data is never used for training — ours or our providers'. Logging is one toggle away, storage region is chosen per project, and everything is SOC 2 Type II audited.
(02) — Platform
Under the hood
Everything that's usually scattered across provider consoles, spreadsheets, and support tickets — gathered into one calm interface.
Latency
42ms
median time to first token, across all providers
Uptime
99.98%
trailing 12 months — live on our public status page
Privacy
Zero training on your data
Request logging is off by default, storage region is picked per project, and every provider in the chain is bound by the same terms. GDPR & CCPA aligned.
Billing
One invoice, not ten
Real-time breakdown by project, team, and model. CSV export, budget alerts, and ACH or net-30 invoicing on Enterprise.
(03) — Catalog
Models on the shelf
The catalog grows as new models ship. Prices are per million tokens, straight from the providers — no markup for access.
catalog updated 2 hours ago
ModelProviderContextInput / 1MOutput / 1M
Claude Sonnet 4.5
Anthropic200K
$3.00$15.00→
GPT-5
OpenAI400K
$1.25$10.00→
Gemini 2.5 Pro
Google1M
$1.25$10.00→
DeepSeek V3.2
DeepSeek128K
$0.28$0.42→
Llama 4 Maverick
Meta1M
$0.22$0.85→
Qwen 3 Max
Alibaba256K
$1.20$6.00→
Mistral Large 3
Mistral256K
$2.00$6.00→
Showing 7 of 214 — the full catalog lives in the docs.
(04) — For developers
Three lines to your first token
The SDK is OpenAI-compatible: swap the base URL and key, and the rest of your code keeps working. Streaming, tool calls, and structured output are supported out of the box.
- Text, vision, and audio through one SDK
- Streaming & function calling, no wrappers
- OpenAPI spec + Postman collection
- Node, Python, Go, and raw REST
What builders say
Stratum cut our inference spend 34% in the first month. Failover alone earned back the migration afternoon — our on-call phone just stopped ringing.
Migrating was literally one string. Five billing dashboards became one. I keep waiting for the catch — it hasn't shown up.
(05) — Stratum Campus · Accredited by Highfield
An accredited hub for AI fluency
Through Stratum Campus, teams earn Highfield-accredited certifications in AI compliance, data handling, and responsible use — externally audited standards trusted across regulated US industries.
120K+learners certified
12accredited programs
94%first-attempt pass rate
4.8/5average learner rating
(06) — Billing & security
Money moves. Nothing leaks.
Card data never touches our servers. Payments run through Stripe — PCI DSS Level 1 — under 256-bit TLS on every request. Add Apple Pay, Google Pay, PayPal, or plain old ACH, and checkout becomes the least interesting part of your day.
- PCI DSS Level 1 via Stripe. Card numbers are tokenized and never stored on our side.
- 256-bit TLS 1.3 encryption on every request, end to end.
- SOC 2 Type II audited. Report available under NDA. GDPR & CCPA aligned.
- 30-day money-back guarantee. No forms, no interrogation, full refund.
(07) — Pricing
You pay for tokens. That's it.
No platform fee, no seat math, no minimums. Token rates match provider list prices — and volume discounts kick in automatically.
Most popular
Scale
$0/mo base · pay-as-you-go
Tokens at provider list prices — 0% Stratum fee. Volume discounts up to 25% applied automatically.
- Priority routing & automatic failover
- Teams, shared keys, per-project limits
- Usage analytics & CSV export
- Prompt caching up to −90%
- Cards, PayPal, Apple Pay, Google Pay & ACH
- Campus seats — accredited team training
30-day money-back guarantee
Starter
$0forever
24-hour free Day Pass on signup, then $5 in credits. No credit card required.
- Every model unlocked during your Day Pass
- 50 requests per minute
- Community Discord support
Enterprise
from $2,000/month
Private gateway in your VPC, SSO/SAML, dedicated success manager.
- 99.99% SLA & priority support
- Region-pinned data storage
- Net-30 invoicing & purchase orders
- Custom DPA & security review
VISA
AMEX
PayPal
Apple Pay
G Pay
Prices in USD. Sales tax added at checkout where applicable. Secure payments via Stripe.
(08) — FAQ
Answers before you ask
Didn't find yours? Email [email protected] — a human answers, not a bot.
Sign up and every model and feature unlocks for 24 hours — no credit card, no sales call. When the day ends, you keep $5 in credits to keep testing at your own pace, and upgrading takes one click. If you do nothing, your account simply stays on the free Starter tier.
Instantly — no waitlist, no sales call. Sign up, grab your API key in about five minutes, and start with your free 24-hour Day Pass. No credit card required, and the full catalog is available from day one.
Highfield is an international awarding organization for compliance qualifications. Stratum Campus training programs are Highfield-accredited, meaning course content, assessments, and certificates meet externally audited quality standards — the same benchmark trusted across regulated US industries. You can read our full ethical commitments in .
Yes. All payments are processed by Stripe — PCI DSS Level 1 — over 256-bit TLS 1.3 encryption. Your card details are tokenized and never touch Stratum servers. Prefer not to type a card at all? Apple Pay, Google Pay, PayPal, and ACH are all supported at checkout.
Every plan is backed by a 30-day money-back guarantee. If Stratum isn't a fit, email us within 30 days of your first charge and we refund it in full — no forms, no interrogation. You can also cancel anytime with one click; no retention calls, ever.
Request logging is off by default and fully disableable with one toggle. We never train models on customer data — ours or our providers'. Stratum is SOC 2 Type II audited and GDPR/CCPA aligned; a DPA is available on request.
24/7 support via email and in-app chat, with a median first response under 2 hours. Scale plans include a shared Slack channel; Enterprise adds a 15-minute priority SLA and a dedicated success manager who knows your stack.
You get the same models at the same list prices — direct contracts don't go anywhere. What changes is the layer above: one key, one invoice, automatic failover, and the freedom to switch models with one line of config instead of one quarter of procurement.
Your first day is on us
Sign up, grab a key — every model unlocked for 24 hours, no credit card. 214 models are waiting.