Measured on Composite
This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.
AI model
Anthropic: Claude Opus 5.5
anthropic/claude-opus-5.5
Anthropic: Claude Opus 5.5 is a 1,000,000-token model served on Composite at $1.28 per million tokens in and $20.0 per million tokens out.
Try in PlaygroundSpecifications
| Model ID | anthropic/claude-opus-5.5 |
|---|---|
| Provider | cv11 |
| Context window | 1,000,000 tokens |
| Accepts | text, image, file |
| Returns | text |
| Input price | $1.28 per million tokens |
| Output price | $20.0 per million tokens |
| Prompt caching | Supported — cached input is 60% off the list rate on pay-as-you-go credits |
| Web search | $0.0100 per result |
| Thinking | Always on for this model |
| Moderated | Yes - by the provider |
| Cost on a monthly plan | 53 requests of the daily allowance per call |
| Plans that may spend on it | Pro, Ultra, Enterprise |
| Routing endpoints | 8 (base plus 7 routing variants) |
Routing variants
The same model behind 7 alternative endpoints. Call the id directly to pin a route; the base id above picks for you.
| Route | Model ID | Provider | Price |
|---|---|---|---|
| Normal | anthropic/claude-opus-5.5-normal |
cv11 | $1.28 per million tokens input · $20.0 per million tokens output |
| Normal + cheapThink | anthropic/claude-opus-5.5-normal:cheapThink |
cv11 | $1.28 per million tokens input · $20.0 per million tokens output |
| Cheapest provider | anthropic/claude-opus-5.5:cheapest-provider |
Amazon Bedrock | $1.28 per million tokens input · $20.0 per million tokens output |
| Cheapest provider + cheapThink | anthropic/claude-opus-5.5:cheapest-provider:cheapThink |
Amazon Bedrock | $1.28 per million tokens input · $20.0 per million tokens output |
| cheapThink | anthropic/claude-opus-5.5:cheapThink |
cv11 | $1.28 per million tokens input · $20.0 per million tokens output |
| Fast | anthropic/claude-opus-5.5:fast |
Claude Platform on AWS | $1.28 per million tokens input · $20.0 per million tokens output |
| Fast + cheapThink | anthropic/claude-opus-5.5:fast:cheapThink |
Claude Platform on AWS | $1.28 per million tokens input · $20.0 per million tokens output |
Pricing
$1.28 per million tokens input · $20.0 per million tokens output
Input and output are charged at the provider’s list price.
On a monthly plan, one call costs 53 requests of that day's allowance. That needs the Pro or Ultra or Enterprise plan; credits pay for it on any plan.
Provider
cv11
Roleplay fit
Claude models are widely regarded for nuanced, in-character writing and for following detailed system prompts and character cards closely.
Context behavior
With a 1,000,000-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.
Cost for regular use
It sits in the mid-range on price, a reasonable pick for regular roleplay use without going for the cheapest option available.
From the provider
Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
Supplied by cv11, not written by Composite.
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Composite Anthropic Router · Anthropic: Claude Opus 5 (Cheap) · Anthropic: Claude Opus 4.8 (Cheap)