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Anthropic: Claude Opus 5

claude-opus-5
Browse modelsGet API KeyComparePlaygroundQuick start

Claude Opus 5 is available through Newton’s OpenAI-compatible API.

Modalities
Text → text
In / Out Price
$3.80 / $19.60 per 1M
Context
Not published
Released
Not published
Knowledge Cutoff
Not published

Providers

Newtons exposes one customer-facing gateway route. Supplier and upstream routing details are kept internal.

RouteStatusInput /MOutput /MCache read /M
Newtons gateway
OpenAI-compatible API		Available$3.80$19.60$0.00

Pricing

Activity records the token rates and any per-request fee used for each request. Cached input is shown separately when published.

Input / 1M$3.80
Cached input / 1M$0.00
Output / 1M$19.60

Performance

Latency and throughput history are still collecting. Newton’s will show percentile, time window, and sample size once enough production observations exist.

Performance history is collecting—

Availability

Availability history is not yet published. Current catalog state is shown without converting a single verification run into an uptime claim.

Current stateAvailable
Last verifiedSep 9, 2026, 8:15 PM
Requested modelExact model

Availability and evidence

Catalog availability does not by itself establish every capability or billing check. Integration-specific results appear in Quick Start when published.

  • Published model IDclaude-opus-5
  • PricingPublished above
  • Usage accountingReview your request in Activity
  • Billing verificationPending

Quick Start

Use the OpenAI-compatible API with the exact model ID.

curl https://api.newtons.dev/v1/responses \
  -H "Authorization: Bearer $NEWTONS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"claude-opus-5","input":"Hello from Newtons"}'

Activity

Request-level tokens, cost, model identity, and latency appear in your Activity after you make a request.

Open Activity →