anthropic/claude-opus-4-8
200K context · $2.00 / M input tokens · $10.00 / M output tokens
Claude Opus 4.8 is Anthropic's newest Opus model for complex reasoning, advanced coding, and deep research workloads that need high accuracy and careful analysis.
2026-07-21 11:58:40 UTC
Pricing
Pay-per-use
No upfront costs, pay only for what you use
API Usage
API Access Guide
Code examples
Use the OurToken API endpoint for this model. The examples below use direct HTTP requests and the recommended endpoint for the model family.
curl https://api.ourtoken.ai/v1/messages \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "claude-opus-4-8",
"messages": [
{
"role": "user",
"content": "Hello!"
}
],
"max_tokens": 256
}'Messages API Reference
Create a Claude Messages-compatible response through OurToken. This format uses a messages array, max_tokens, optional system prompts, tools, and thinking settings.
Authorization
| Content-Type | application/json |
| Authorization | Bearer YOUR_API_KEY |
Request Body
| Field | Type | Required | Description |
|---|---|---|---|
| model | string | Required | Model ID to call. |
| messages | array<object> | Required | Conversation messages sent to the model. |
| system | string | array<object> | Optional | Optional system prompt. |
| max_tokens | integer | Required | Maximum number of output tokens. |
| temperature | number | Optional | Sampling temperature. |
| top_p | number | Optional | Nucleus sampling parameter. |
| top_k | integer | Optional | Top-k sampling parameter. |
| stream | boolean | Optional | Whether to return a streaming response. |
| stop_sequences | array<string> | Optional | Sequences that stop generation. |
| tools | array<object> | Optional | Tools available to the model. |
| tool_choice | object | Optional | Controls how the model selects tools. |
| thinking | object | Optional | Thinking configuration for supported Claude models. |
| metadata | object | Optional | Optional request metadata. |
Response Body
| Field | Type | Required | Description |
|---|---|---|---|
| id | string | Required | Unique message identifier. |
| type | "message" | Required | Object type returned by the Messages API. |
| role | "assistant" | Required | Role of the returned message. |
| content | array<object> | Required | Array of content blocks returned by the model. |
| content[].text | string | Optional | Text inside a returned content block. |
| model | string | Required | Model that produced the response. |
| stop_reason | string | Optional | Reason generation stopped. |
| usage | object | Optional | Token usage information for the message. |
| usage.input_tokens | integer | Optional | Input token count. |
| usage.output_tokens | integer | Optional | Output token count. |
| usage.cache_creation_input_tokens | integer | Optional | Tokens written to prompt cache. |
| usage.cache_read_input_tokens | integer | Optional | Tokens read from prompt cache. |
Model Introduction
Anthropic claude-opus-4-8
Claude Opus 4.8 is Anthropic's newest Opus model for complex reasoning, advanced coding, and deep research workloads that need high accuracy and careful analysis.
Claude Opus 4.8 extends the Opus series for demanding professional tasks, with strong performance across multi-step reasoning, repository-aware coding, and research synthesis. With a 200K token context window and up to 32K output tokens, it is built for teams that need deep context, tool-ready responses, and predictable production evaluation.
Why It Looks Great
- Newest Opus-class Anthropic model for demanding professional and research workloads.
- 200K token context window for large documents, codebases, and extended reasoning.
- Supports vision inputs for document understanding and multimodal workflows.
- Strong coding performance across generation, debugging, review, and refactoring tasks.
- Accessible via the OurToken unified API at 40% of the standard Anthropic price.
Key Features
- Context Window: 200000 tokens
- Max Output: 32000 tokens
- Vision: Supported
- Function Calling: Supported
- Extended Thinking: Supported
- Input: Text, Image
- Output: Text
Specifications
Claude Opus 4.8 API Features for Developers
Use Claude Opus 4.8 API on OurToken for clear official-pricing ratio access, Claude Code Opus 4.8 workflows, Anthropic routing, vision, and structured output.
API Access
Call Claude Opus 4.8 API through OurToken's unified endpoint while keeping a familiar integration path. Teams can compare provider behavior, token costs, and production readiness without maintaining separate Anthropic-specific routing code for every evaluation environment.
Official Price Ratio
OurToken lists Claude Opus 4.8 at $2.00 input and $10.00 output per million tokens, based on the current project data. That gives teams 40% of official API pricing before scaling coding, research, or agent workloads.
Claude Code
Use Claude Code Opus 4.8 workflows for repository analysis, debugging, refactoring, and patch planning. Developers searching for claude code 4.8 can evaluate how Opus 4.8 handles multi-file context, implementation constraints, and review-heavy software tasks in production.
Anthropic Workflows
Route Anthropic Opus 4.8 requests through OurToken when your product needs high-accuracy reasoning, tool-aware responses, and provider flexibility. This helps teams test Claude Opus 4.8 Anthropic behavior alongside other supported models in one API surface.
Context Handling
Use the project-defined 200K context window and 32K max output for long documents, code-heavy prompts, research notes, and extended task instructions. Keep model planning grounded in the current OurToken data instead of unverified competitor limits.
Vision Tools
Send text and image inputs for document understanding, screenshot review, visual reasoning, and multimodal assistants. Claude Opus 4.8 API can also support function calling and structured output patterns when applications need predictable downstream automation paths.
How to Use Claude Opus 4.8 API on OurToken
Create an API key, choose Claude Opus 4.8 API, compare pricing, then test Claude Code and Anthropic workflows.
Generate API Key
Create an OurToken API key and store it in a secure server-side environment variable. This gives your backend a stable credential for Claude Opus 4.8 API calls without exposing secrets in browser or client-side code.
01Select Model ID
Use claude-opus-4-8 as the model value when sending chat completions requests. Document the model ID clearly for developers comparing Claude Opus 4.8 API access, Anthropic Opus 4.8 providers, and production routing options across environments today.
02Call Unified API
Send requests through OurToken's unified API endpoint with your OpenAI-compatible client. This keeps Claude Opus 4.8 Anthropic access, pricing review, and model comparison inside one integration instead of separate provider-specific code paths for each application.
03Compare Pricing
Before scaling traffic, compare the OurToken price against official API pricing and expected token volume. Use the current $2.00 input and $10.00 output rates to estimate Claude Opus 4.8 API cost for real production workloads.
04Test Claude Code
Run representative Claude Code Opus 4.8 tasks such as code review, debugging, refactoring, patch planning, and repository-aware implementation. Include files, failing tests, coding conventions, and acceptance criteria so the model can reason over practical constraints.
05Validate Production Fit
Measure accuracy, latency, token usage, structured output behavior, and tool-call reliability before choosing a production route. Track whether Opus 4.8 Claude Code workflows reduce review cycles compared with smaller or cheaper models in practice today.
06Claude Opus 4.8 API FAQ
Answers about Claude Opus 4.8 API pricing, release details, Claude Code workflows, Anthropic access, context limits, and provider evaluation.