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Claude · Flagship · 200K context window

Claude Opus 4.8 pricing for unit test generation

$0.1400 per call at 3,000 input / 5,000 output tokens.

Per call

$0.1400

10K calls/mo

$1,400

Cache savings

90% off input

Batch savings

50% off all

Calculate your Claude Opus 4.8 costs

Adjust token counts, volume, and discount toggles to model your unit test generation spend. Pricing updated weekly.

Configure your usage

3,000
100100K
5,000
5050K
10,000
1001M

Estimated cost

Monthly cost
$1,400
10,000 calls/month
Cost per call$0.14
Daily cost$47
Input rate$5.00/MTok
Output rate$25.00/MTok
Analyze your real spend

Quick start

Call Claude Opus 4.8 with the Anthropic Python SDK:

from anthropic import Anthropic

client = Anthropic()
response = client.messages.create(
    model="claude-opus-4-8",
    max_tokens=5000,
    messages=[{"role": "user", "content": "Your prompt here"}]
)
# Cost: ~$0.1400 per call at standard rates
# Input:  $5.00/MTok
# Output: $25.00/MTok

How Claude Opus 4.8 compares on cost

Per-call cost for all models scoring 50+ on unit test generation benchmarks. Hover for details.

Gemini 3.5 Flash-Lite$0.008250Gemini 3 Flash$0.0165Claude Haiku 4.5$0.0280GPT 5.6 Luna$0.0330Gemini 3.5 Flash$0.0495Claude Sonnet 5$0.0560Gemini 3.1 Pro$0.0660GPT 5.4$0.0825GPT 5.6 Terra$0.0825Claude Sonnet 4.6$0.0840Claude Opus 4.8$0.1400GPT 5.5$0.1650GPT 5.6 Sol$0.1650Claude Fable 5$0.2800

Cheapest viable option: Claude Sonnet 5 at $0.0560/call (60% less, 93/100 quality).

Complete Claude Opus 4.8 pricing breakdown

Standard token rates

Direction$/MTokTokens per call
Input$5.003,000
Output$25.005,000

Prompt caching: 90% off input tokens

Caching drops input cost from $5.00 to $0.50/MTok. For repeated system prompts, that saves $0.0135 per call.

Batch API: 50% off all tokens

Submit requests asynchronously and receive 50% off all token costs. This works best for offline pipelines where latency requirements are flexible.

Monthly cost projections

Monthly volumeCost per callStandard monthlyCached monthlyYou save with caching
10,000 calls$0.1400$1,400$1,265$135
50,000 calls$0.1400$7,000$6,325$675
100,000 calls$0.1400$14,000$12,650$1,350
500,000 calls$0.1400$70,000$63,250$6,750
1,000,000 calls$0.1400$140,000$126,500$13,500

Claude Opus 4.8 quality benchmarks for unit test generation

Use Claude Opus 4.8 for unit test generation

Scores 95/100 (rank #1 of 14). Strong pick for production unit test generation workloads.

Top-ranked: Claude Fable 5 (96/100) at $0.2800/call

Performance across all task types

Claude Opus 4.8 scores by task type. Unit Test Generation highlighted.

Reasoning97Code Generation *95Code Review94Creative Writing93Summarization88Q&A85Extraction82Classification80
Task typeConfidence scoreRank out of 14
Reasoning97/100#1
Code Generation(current page)95/100#1
Code Review94/100#2
Creative Writing93/100#1
Summarization88/100#4
Q&A85/100#5
Extraction82/100#5
Classification80/100#6

Alternative models for unit test generation

8 models score 80+ on unit test generation benchmarks, sorted by input rate. Cheapest: Claude Sonnet 5 (60% less, 93/100 quality).

ModelProviderInput $/MTokOutput $/MTokQualityPer callvs Claude
Claude Sonnet 5Claude$2.00$10.0093/100$0.056060% cheaper
Gemini 3.1 ProGemini$2.00$12.0086/100$0.066053% cheaper
GPT 5.4GPT$2.50$15.0084/100$0.082541% cheaper
GPT 5.6 TerraGPT$2.50$15.0086/100$0.082541% cheaper
Claude Sonnet 4.6Claude$3.00$15.0092/100$0.084040% cheaper
GPT 5.5GPT$5.00$30.0091/100$0.165018% more
GPT 5.6 SolGPT$5.00$30.0094/100$0.165018% more
Claude Fable 5Claude$10.00$50.0096/100$0.2800100% more

About Claude Opus 4.8

Provider

Claude

Tier

Flagship

Context

200K tokens

Released

Apr 2026

Other models from Claude

ModelTierInput $/MTokOutput $/MTokContext
Claude Sonnet 4.6Mid-tier$3.00$15.00200K
Claude Haiku 4.5Fast / Budget$1.00$5.00200K
Claude Sonnet 5Mid-tier$2.00$10.00200K
Claude Fable 5Flagship$10.00$50.001,000K

You can compare Claude Opus 4.8 head-to-head against any other model on our model comparison pages, or track how pricing has changed over time on the pricing history tracker.

Claude Opus 4.8 pricing for other use cases

See how Claude Opus 4.8 costs change across different workload types.

Code Generation

$0.1100/call

SQL Generation

$0.0325/call

API Generation

$0.1650/call

Code Refactoring

$0.1200/call

Code Review

$0.0750/call

PR Review

$0.1150/call

Security Review

$0.0925/call

Bug Detection

$0.0750/call

Document Summarization

$0.0750/call

PDF Summarization

$0.1125/call

Meeting Notes

$0.0900/call

Email Summarization

$0.0275/call

Chatbot

$0.0350/call

RAG Pipeline

$0.0675/call

Customer Support Bot

$0.0400/call

FAQ Bot

$0.0275/call

Data Extraction

$0.0450/call

JSON Extraction

$0.0350/call

Invoice Parsing

$0.0250/call

Resume Parsing

$0.0325/call

Chain of Thought

$0.1400/call

Legal Analysis

$0.1500/call

Math Reasoning

$0.0825/call

Financial Analysis

$0.1400/call

Content Moderation

$0.005000/call

Sentiment Analysis

$0.005000/call

Categorization

$0.007750/call

Intent Detection

$0.004000/call

Copywriting

$0.0525/call

Blog Writing

$0.2050/call

Marketing Copy

$0.0790/call

Product Descriptions

$0.0400/call

Related pages

Frequently asked questions

How much does Claude Opus 4.8 cost for unit test generation per API call?

$0.1400 per call at 3,000 input / 5,000 output tokens.

Is Claude Opus 4.8 the best model for unit test generation?

Scores 95/100, rank #1 of 14 models. Top-ranked: Claude Fable 5 at 96/100.

What is the cheapest model for unit test generation with good quality?

Claude Sonnet 5 scores 93/100 quality at $2.00/$10.00 per MTok. That is 60% less than Claude Opus 4.8 per call.

How can I reduce my Claude Opus 4.8 costs for unit test generation?

Three strategies: prompt caching (90% off input), batch API (50% off all tokens), prompt optimization. Combined: $0.1400 drops to about $0.007000 per call.

How does Claude Opus 4.8 pricing compare to other Claude models?

Claude also offers: Claude Sonnet 4.6 at $3.00/$15.00, Claude Haiku 4.5 at $1.00/$5.00, Claude Sonnet 5 at $2.00/$10.00, Claude Fable 5 at $10.00/$50.00.

What context window does Claude Opus 4.8 support?

200K tokens total. Typical unit test generation calls use 3,000 plus 5,000 tokens, well within limits.

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