GPT-5 vs Claude Opus 4.8 — Premium AI Pricing

GPT-5 is 75% cheaper on input and 60% cheaper on output than Claude Opus 4.8. Opus 4.8 has 3.7x more context. Compare the premium OpenAI and Anthropic models side by side.

Pricing data verified: Jun 11, 2026

Cheapest Input
GPT-5
$1.25 vs $5.00 per 1M tokens
Best Context
Opus 4.8
1M vs 272K tokens
Best Value
GPT-5
75% cheaper input, 60% cheaper output

All Premium Models Compared

The premium AI models from major providers, ranked by input price.

Model Provider Tier Input (per 1M) Output (per 1M) Context
GPT-5 OpenAI Premium $1.25 $10.00 272K
GPT-5.5 OpenAI Premium $5.00 $30.00 1.05M
Claude Opus 4.8 Anthropic Premium $5.00 $25.00 1M
GPT-5.5 Pro OpenAI Premium $30.00 $180.00 1.05M

Calculate Your Exact Costs

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vs
OpenAI
GPT-5
$0.00
per month
Input cost $0.00
Output cost $0.00
Per request $0.00
Anthropic
Claude Opus 4.8
$0.00
per month
Input cost $0.00
Output cost $0.00
Per request $0.00
Enter your usage above to see savings.

Which Should You Choose?

Chatbot / Customer Support

High volume, short responses. Cost per message matters most. Both models handle complex customer queries well.

Pick GPT-5: At $1.25/$10.00 it's 75% cheaper on input than Opus 4.8. At 1M requests/month: $112.50 vs $300.

Code Generation

Complex reasoning, longer outputs. Quality and accuracy matter. Both handle most coding tasks well.

Pick GPT-5: 75% cheaper input at $1.25 vs $5.00. Strong coding capabilities for most code completion and generation tasks.

Long Document Analysis

Processing large documents, legal contracts, or codebases. Context window is critical.

Pick Opus 4.8: 1M context (3.7x more than GPT-5's 272K). Essential for large-scale document analysis and complex multi-step reasoning.

Complex Reasoning

Multi-step analysis, research tasks, and problems requiring deep logical reasoning across large information sets.

Pick Opus 4.8: Best-in-class reasoning capabilities with 1M context. The premium is justified when analytical depth is paramount.

Creative Writing

Long-form content, nuanced storytelling, and tasks requiring superior style and voice.

Pick Opus 4.8: Superior nuance and style. For creative writing where quality and originality matter more than cost, Opus 4.8 delivers.

Enterprise / Safety-Critical

Regulated industries, strict compliance, Anthropic's safety guarantees required.

Pick Opus 4.8: Anthropic's safety-first approach and enterprise compliance. The premium is justified for regulated and safety-critical workloads.

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Frequently Asked Questions

Is GPT-5 cheaper than Claude Opus 4.8?

Yes, GPT-5 is significantly cheaper than Claude Opus 4.8. GPT-5 costs $1.25/$10.00 per 1M tokens while Claude Opus 4.8 costs $5.00/$25.00. That's 75% cheaper on input and 60% cheaper on output. At 10M tokens/month, GPT-5 costs $112.50 vs Opus 4.8's $300 — saving $187.50/month.

Which is better for coding: GPT-5 or Claude Opus 4.8?

For most coding tasks, GPT-5 offers better value at 75% lower input cost ($1.25 vs $5.00). GPT-5 has strong coding capabilities and handles code completion, refactoring, and generation well. Claude Opus 4.8 excels at complex reasoning tasks that require deep analysis of large codebases, thanks to its 1M context window. Choose GPT-5 for cost-efficiency, Opus 4.8 for complex multi-file reasoning.

What is the context window difference between GPT-5 and Claude Opus 4.8?

GPT-5 has a 272K token context window, while Claude Opus 4.8 has a 1M token context window. Opus 4.8 supports 3.7x more context, which is critical for long document analysis, large codebases, and complex multi-step reasoning tasks that require processing extensive information.

GPT-5 vs Claude Opus 4.8 for enterprise?

For enterprise use, the choice depends on priorities. Opus 4.8 is better for safety-critical and regulated workloads due to Anthropic's safety-first approach and enterprise compliance features. GPT-5 is better for cost-sensitive enterprise deployments where volume is high and the 75% input cost savings are significant. Many enterprises use both: GPT-5 for routine tasks, Opus 4.8 for high-stakes reasoning.

Is Claude Opus 4.8 worth the premium over GPT-5?

Claude Opus 4.8 is worth the premium for specific use cases: complex multi-step reasoning, long document analysis requiring 1M context, creative writing that demands superior nuance, and safety-critical enterprise applications. For general-purpose tasks, chatbots, and cost-sensitive workloads, GPT-5 at 75% lower input cost provides better value. The premium is justified when quality and context window are more important than cost.

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