A

Claude Opus 5 (Fast)

anthropic / claude-opus-5-fast

Fast-mode variant of Opus 5 — identical capabilities with higher output speed at 2x pricing relative to regular Opus 5.

Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode

MODALITIES
T
I
F
T
IN / OUT PRICE
$10 / $50 per 1M
CONTEXT
1M
RELEASED
Jul 24, 2026

OpenAI Chat Completions
AI SDK
Rhioara API
HTTP/cURL
Python
JavaScript

OpenAI-compatible HTTP API

You can POST to our OpenAI Chat Completions compatible endpoint.

Simple messages and prompts

Given a list of messages from a conversation, the model will return a response.

curl "https://api.rhioara.com/v1/openai/chat/completions" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "zai-org/GLM-5.2",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }'

Effective Pricing

The chart below shows the average price customers are actually paying after prompt caching. Depending on the amount of repeated context you send, this can be 60-80% cheaper than the provider list price.

Weighted Average

Weighted Avg Input Price
$1.97
/M tokens
Weighted Avg Output Price
$50.00
/M tokens
Provider ↑↓↑↓ Input $/1M↑↓ Output $/1M↑↓ Cache hit rate↑↓ Token share (1d)
A
Anthropic
$1.97$50.00100.0%

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round trip time to first token (seconds — lower is better).

Throughput
Line Chart: Throughput
P50 avg in P50
102 tok/s
TTFT
Line Chart: TTFT
P50 avg in P50
0.82 s
End to End
Line Chart: End to End
P50 avg in P50
2.74 s
TPS (Output)
Line Chart: TPS
P50 avg in P50
98 tok/s
Latency Variance
Line Chart: Variance
P99 avg in P99
9.16 s
Error Rate
Line Chart: Errors
Avg last 7d
0.00%

Uptime

Percent of requests that succeeded over the last 30 days. Rhioara monitors every provider continuously.

Avg. Provider Uptime (3d) 100.00%
Uptime Timeline Chart (Green Bars)

When an error occurs in an upstream provider, we can recover by routing to another healthy provider.

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like.

Activity

Token volume and request traffic to this model over time. Prompt tokens measure input size. Reasoning tokens show internal thinking before a response.

Interactive Bar Chart Area (Tokens: Prompt, Completion, Reasoning)

Frequently asked questions

More models from Anthropic