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Most Reliable Claude Opus 5 (Fast) Inference Providers

Ranks providers by the uptime OpenRouter measured during the latest 30-minute window.

Median input price:
$10 / 1M
Median output price:
$50 / 1M
Median cache price:
$1 / 1M

Highest uptime endpoint ranking

Rank providers by
Most Reliable Claude Opus 5 (Fast) Inference Providers
RankProvider / routePricingBenchmarksAPI support
#1Provider / route
Anthropic(0)
1M contextunknown128K max output
Pricing
Input
$10 / 1M
Output
$50 / 1M
Cache
$1 / 1M
Blended
$23.3333 / 1M
Benchmarks
Speed
7.26 s
TTFT
2.40 s
TPS
103.0 tok/s
Uptime
100.00%
API support
  • Tool calling
  • Tool choice
  • Structured output
  • Parallel calls

Endpoint data fetched .

Claude Opus 5 (Fast) endpoint guide

How to interpret the Most Reliable Claude Opus 5 (Fast) Inference Providers

1 of 1 Claude Opus 5 (Fast) endpoint currently have the published data required for this ranking. Anthropic leads at 100.00% via anthropic. The table keeps unranked routes visible so missing measurements do not look like missing provider availability.

How recent uptime is ranked

The reliability ranking uses the published 30-minute endpoint uptime measurement. This short operational window can reveal current instability, but it is not a service-level agreement or a substitute for longer-term availability monitoring.

Compare Anthropic with the next option

Only 1 route currently qualifies, so the rank alone provides limited choice. Review every visible endpoint for price, speed, uptime, context length, and route-specific configuration.

Use the route, not only the provider name

Claude Opus 5 (Fast) has 1 published provider option, and performance data is matched to each exact OpenRouter routing tag. Different quantization, context, regional deployment, or provider configuration can change price and behavior even when the underlying model name is identical.