RelayRouterModels / Compare / claude-opus-5-5 vs gemini-3.8-flash
claude-opus-5-5 vs gemini-3.8-flash
Both models are available on RelayRouter through one base URL. This page shows which public groups serve each one, what the groups charge, and the protocol to call, so you can pick by price and integration effort. It does not rank quality.
claude-opus-5-5
claude-opus-5-5
- Provider
- Anthropic
- Modality
- text generation
- Public groups
- 1
- Cheapest group
- Claude: settlement rate ¥2 per $1 of standard usage, about 71% below the ¥6.8/$ market reference
- Protocols
- Anthropic Messages API
gemini-3.8-flash
gemini-3.8-flash
- Provider
- Google DeepMind
- Modality
- text generation
- Public groups
- 1
- Cheapest group
- Gemini Vertex Official: settlement rate ¥5.4 per $1 of standard usage, about 21% below the ¥6.8/$ market reference
- Protocols
- Gemini generateContent API
Same request, two models
import anthropic
client = anthropic.Anthropic(
api_key="your-relayrouter-key",
base_url="https://relayrouter.io",
)
msg = client.messages.create(
model="claude-opus-5-5",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello!"}],
)
print(msg.content[0].text)curl "https://relayrouter.io/v1beta/models/gemini-3.8-flash:generateContent" \
-H "x-goog-api-key: $RELAYROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"contents": [{"parts": [{"text": "Hello!"}]}]}'Questions
Is claude-opus-5-5 or gemini-3.8-flash cheaper on RelayRouter?
Compare the cheapest group of each: claude-opus-5-5 is served by "Claude" (settlement rate ¥2 per $1 of standard usage, about 71% below the ¥6.8/$ market reference) and gemini-3.8-flash by "Gemini Vertex Official" (settlement rate ¥5.4 per $1 of standard usage, about 21% below the ¥6.8/$ market reference). Settlement rates apply to the provider's standard usage, so a model with a higher official price can still cost more at a lower rate.
Can I switch between the two without changing code?
If both models sit in groups with the same protocol you only change the model name. If the protocols differ, point the matching SDK at https://relayrouter.io; the base URL and key handling stay the same.
Does this page compare output quality?
No. It compares availability, protocols and price on RelayRouter. Run your own evaluation prompts through both models; failed requests are not billed.
Rates are indicative; the console shows the authoritative rate at request time. See pricing and the full model list.