AI Calculator Pro

Claude Opus 4.6 vs DeepSeek V4 Flash

Cost and capability comparison. For a sample workload of 1,000 input and 500 output tokens across 100,000 requests/month, DeepSeek V4 Flash is cheaper by about $1,705.00/month.

Claude Opus 4.6DeepSeek V4 Flash
Intelligence
Arena · Overall(LMArena Elo — higher is better)14981424
Arena rank (overall)#2#52
Arena · Coding15371580
Arena · Math & reasoning14251340
Arena · Agentic / tool use14351335
Score evidenceMeasuredMeasured
Pricing (USD / 1M tokens)
Input$5.00$0.1500
Output$25.00$0.6000
Cached input (read)$0.5000$0.00300
Cache write$6.25
Blended(3:1 input:output blend)$10.00$0.2625
Specs & capabilities
ProviderAnthropicDeepSeek
Context window1M (1,000,000)1M (1,000,000)
Max output64,0008,192
Modalitiestext, imagetext
VisionYesNo
Tool useYesYes
ReasoningYesNo
Prompt cachingYesYes
Batch pricingYesNo
Tokenizerclaudeapprox
Release date
Statusgaga

Intelligence scores are community Arena ratings from LMArena / arena.ai, used under CC BY 4.0. Snapshot last refreshed 18 September 2026. Scores are a relative signal, not an absolute measure of capability. A Measured score was voted on directly; an Estimated score is inherited from an identical base model (a regional/creator-prefixed hosting duplicate). See our methodology.

Compare on your own workload

Claude Opus 4.6 and DeepSeek V4 Flash are pre-loaded. Adjust the tokens and monthly volume to see which is cheaper for your usage.

Used unless you set active users below.

Results update automatically as you type.

Result
Cheapest: DeepSeek V4 Flash at $45.00/month
Workload: 1,000 in / 500 out × 100,000 requests/month
DeepSeek V4 FlashDeepSeek$0.000450$45.00$540.001,000,000
Claude Opus 4.6Anthropic$0.0175$1,750.00$21,000.001,000,000

FAQ

Which is cheaper, Claude Opus 4.6 or DeepSeek V4 Flash?

For a workload of 1,000 input and 500 output tokens over 100,000 requests/month, DeepSeek V4 Flash is cheaper, costing about $45.00/month versus $1,750.00/month.

What is the context window of Claude Opus 4.6 and DeepSeek V4 Flash?

Claude Opus 4.6 supports 1,000,000 tokens, while DeepSeek V4 Flash supports 1,000,000 tokens.

Estimates for planning only. Verify current pricing with each provider.