Claude Opus 4.8 Pricing 2026: Everything you need to know
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Claude Opus 4.8 launches with unchanged base pricing at $5/$25 per million tokens, but Fast Mode drops 3x in cost to $10/$50, making 2.5x-speed inference viable for latency-sensitive workloads. The post covers four realistic workload cost projections, the impact of the 4.7-era tokenizer change for teams migrating from Opus 4.6, prompt caching and batch processing strategies, effort control as a cost lever, and dynamic parallel subagent workflows. A comparison against GPT-5.5 and Gemini 3.1 Pro shows Opus 4.8 leading on SWE-bench Pro and OSWorld benchmarks at lower list price than GPT-5.5. The post concludes with migration checklists for 4.7→4.8 and 4.6→4.8 paths, and promotes Finout's Anthropic cost tracking integration.
Table of contents
Claude Opus 4.8 Pricing at a GlanceThe Real Pricing Story: Three LayersBenchmark Performance vs. Cost: How Opus 4.8 Stacks UpThe Full Claude Lineup, Priced for ComparisonCost Projections: Four Realistic WorkloadsEffort Control: The New Cost DialDynamic Workflows: What They CostPrompt Caching and Batch: The Two Levers That Matter MostMigrating From Opus 4.7 to 4.8Migrating From Opus 4.6 to 4.8 (Skipping 4.7)Claude Opus 4.8 vs. GPT-5.5 and Gemini 3.1 Pro: Cost-AdjustedWhat the Honesty Improvements Mean for CostThe Mythos Context: Why This Release Matters Beyond 4.8Should You Upgrade From Opus 4.7 to 4.8?Frequently Asked QuestionsHow to Track Claude Opus 4.8 Costs with FinoutThe Bottom LineSources2 Comments
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