chooseaimodel
← All models

Claude Opus 4.8 vs DeepSeek V4 Flash

List-price comparison · Claude Opus 4.8 details · DeepSeek V4 Flash details

For a typical workload (100,000 requests / mo), DeepSeek V4 Flash costs 99% less $19.60/mo vs $1,600.00/mo.

 Claude Opus 4.8DeepSeek V4 Flash
Input / 1M tokens$5.00$0.098
Output / 1M tokens$25.00$0.196
Typical request (1,200 in + 400 out)$0.016$0.0002
Context window1M tokens1,048,576 tokens
Max output128k tokens
TierFlagshipFlash
ProviderAnthropicDeepSeek

Projected monthly cost

Rows open both models in the calculator — adjust volume and token counts there.

Claude Opus 4.8

Best-in-class for complex multi-step agentic workflows, long-horizon planning, and large codebase refactors. Strong instruction-following on ambiguous, open-ended tasks.

Highest per-token cost in the catalog and noticeably higher latency — reserve for tasks that genuinely need top-tier reasoning rather than routine completions.

DeepSeek V4 Flash

Auto-synced from OpenRouter — no editorial write-up yet.

More comparisons

Vendor list rates · per-request examples assume 1,200 input + 400 output tokens.