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Anthropic: Claude Opus 5.5

AnthropicNewModerated
anthropic/claude-opus-5.5

About this model

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...

Make a request

OpenAI-compatible: set the base URL and your Promptix API key, keep your existing SDK.

curl https://promptix.tn/api/v1/chat/completions \  -H "Authorization: Bearer $PROMPTIX_API_KEY" \  -H "Content-Type: application/json" \  -d '{    "model": "anthropic/claude-opus-5.5",    "messages": [      {"role": "user", "content": "Hello! What can you do?"}    ]  }'

Pricing

In TND per 1M tokens. VAT and the platform fee are added at top-up.

Input tokens

15.484 TND

per 1M tokens

Output tokens

77.419 TND

per 1M tokens

1,000 requests with 1K input and 500 output tokens cost about 54.194 TND.

Specifications

Provider
Anthropic
Context window
1,000,000 tokens
Input modality
Text
Added
Sep 22, 2026
Supported parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputs