Claude Opus 5 vs Qwen3.8-Max

Both are Flagship-tier models, from Anthropic and Alibaba Qwen respectively. Qwen3.8-Max is the cheaper choice overall at a 4:1 input:output ratio.

Which is cheaper

Side by side

SpecClaude Opus 5Qwen3.8-Max
ProviderAnthropicAlibaba Qwen
TierFlagshipFlagship
Context window1M1M
Max output128K—
Input $/1M$5.00$2.00
Output $/1M$25.00$6.00
Cache read $/1M$0.50—
Cache write $/1M$6.25—
Modalitiestext, imagetext

Claude Opus 5. 5-minute cache write shown ($6.25 = 1.25x base input); 1-hour cache write is $10/MTok (2x base). Batch API is 50% off ($2.50/$12.50). Context window and max output cross-checked against platform.claude.com/docs/en/about-claude/models/overview.

Qwen3.8-Max. International (Singapore) USD pricing, flat rate 0<tokens<=1M.

Sources

Claude Opus 5 — verified August 29, 2026

Qwen3.8-Max — verified August 29, 2026

Full Claude Opus 5 pricing page → · Full Qwen3.8-Max pricing page →