44 models · 2.4B tokens per day · 99.99% uptime

One API for every frontier model.

Swap models with a string. Fall back in a line. Attribute every token to the feature that spent it.

Free tier includes 1M tokens per month. Key in 30 seconds.

PythonNodeGocurl

# One call, any model, automatic fallback. from prism import Prism client = Prism(api_key=os.environ["PRISM_KEY"]) response = client.chat.complete( model="auto", fallback=["claude-sonnet-5", "gpt-5.6"], messages=[{"role": "user", "content": prompt}], budget={"latency_ms": 2000, "quality": "high"}, )

Models on Prism today.

Full pricing, live latency, current context windows.

ModelContextLatency p50In / MOut / M

Claude Sonnet 5Anthropic

380 ms

$3.00

$15.00

Opus 5Anthropic

720 ms

$15.00

$75.00

Haiku 4.5Anthropic

200k

120 ms

$0.25

$1.25

GPT 5.6OpenAI

400k

340 ms

$2.50

$10.00

Gemini 3.1 ProGoogle

460 ms

$1.25

$5.00

Llama 4 MaverickMeta

128k

280 ms

$0.90

$2.60

Mistral Large 3Mistral

128k

310 ms

$2.00

$6.00

Fable 5Anthropic

520 ms

$4.00

$18.00

Observability, built in.

Cost, latency, and errors per feature and per team. Tag any call, ship any dashboard.

tokens · last 24h

42.6M

+18% week over week

latency p50 · last 24h

340 ms

Well under budget

spend by feature · last 24h

Ticket triage

agent-loop-triage

18.2M tok

$182

Onboarding copilot

chat-onboarding

12.8M tok

$146

Search rerank

rag-rerank

7.4M tok

$18

Playground

dashboard-playground

4.2M tok

$42

Estimate your monthly cost.

Prism undercuts direct provider billing by 8 to 22 percent on volume, with tag-based attribution and shared retries thrown in.

Monthly tokens

Primary model

Estimated monthly bill

$2,340

↓ $384 saved vs direct billing

Input200M · $600

Output50M · $1,740

Engineers on Prism

"We were writing custom fallback logic in every service. Prism replaced 1,400 lines of code with a config change. Cost attribution shipped for free."

Elin Andersson

Staff Engineer, Basin

"Uptime went from 99.7 to 99.99 the week we switched. The auto fallback catches provider outages we didn't even know were happening."

Kai Iversen

Head of Infra, Runway

One API for every frontier model.

Models on Prism today.

Observability, built in.

Estimate your monthly cost.

Engineers on Prism

Ship your first Prism call in 5 minutes.