API cost decision in 10 seconds

NewQwen3.8 Omni Flash vs DeepSeek V4 Flash Latest

Pick Qwen3.8 Omni Flash for lower cost; pick DeepSeek V4 Flash Latest only if the larger context window matters more.

Page updated:  Data confirmed:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Qwen3.8 Omni Flash for lower cost; pick DeepSeek V4 Flash Latest only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Qwen3.8 Omni Flash is estimated at $0.39 vs $0.43 for DeepSeek V4 Flash Latest, saving $0.05 (10.5% lower).

Cost-first pickQwen3.8 Omni Flash
Context-first pickDeepSeek V4 Flash Latest
Sample savings$0.0510.5%
10x traffic gap$0.45

DeepSeek V4 Flash Latest has more context, but Qwen3.8 Omni Flash saves $0.05 on the standard workload. At 10x that traffic, the same price gap is about $0.45. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Cost winner changes by workload shape: input-heavy / RAG favors DeepSeek V4 Flash Latest, balanced workload favors Qwen3.8 Omni Flash, and output-heavy chatbot favors Qwen3.8 Omni Flash.

Workload shapeToken mixBetter pickQwen3.8 Omni FlashDeepSeek V4 Flash Latest
Input-heavy / RAG5M input + 500K outputDeepSeek V4 Flash Latest$0.98$0.55
Balanced workload1M input + 1M outputQwen3.8 Omni Flash$0.62$0.83
Output-heavy chatbot1M input + 5M outputQwen3.8 Omni Flash$2.5$4.03
Cheaper input DeepSeek V4 Flash Latest $0.15 vs $0.03 / 1M

DeepSeek V4 Flash Latest is $0.12 cheaper per 1M input tokens (80% lower; 5x difference).

Cheaper output Qwen3.8 Omni Flash $0.47 vs $0.8 / 1M

Qwen3.8 Omni Flash is $0.33 cheaper per 1M output tokens (41.3% lower; 1.7x difference).

Larger context DeepSeek V4 Flash Latest 1M vs 1.31M

DeepSeek V4 Flash Latest has 310.72K more context (1.31x larger).

Sample workload Qwen3.8 Omni Flash $0.39 vs $0.43

Qwen3.8 Omni Flash is $0.05 cheaper on the standard workload (10.5% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Qwen3.8 Omni Flash Calculating… Estimated API cost
DeepSeek V4 Flash Latest Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

DeepSeek V4 Flash Latest has the lower input price; Qwen3.8 Omni Flash has the lower output price; DeepSeek V4 Flash Latest offers the larger context window. For the 1M input plus 500K output sample, Qwen3.8 Omni Flash is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.39 for Qwen3.8 Omni Flash and $0.43 for DeepSeek V4 Flash Latest.

Best Fit

Choose Qwen3.8 Omni Flash when you care most about lower output-token price.

Choose DeepSeek V4 Flash Latest when you care most about lower input-token price, and larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Qwen3.8 Omni Flash is estimated at $0.39 vs $0.43 for DeepSeek V4 Flash Latest, saving $0.05 (10.5% lower).
  • Qwen3.8 Omni Flash is $0.05 cheaper on the standard workload (10.5% lower).
  • DeepSeek V4 Flash Latest is $0.12 cheaper per 1M input tokens (80% lower; 5x difference).
  • Qwen3.8 Omni Flash is $0.33 cheaper per 1M output tokens (41.3% lower; 1.7x difference).
  • DeepSeek V4 Flash Latest has 310.72K more context (1.31x larger).
Head-to-Head Specs
FeatureNewQwen3.8 Omni Flash
(Qwen)
DeepSeek V4 Flash Latest
(DeepSeek)
Input Price
prompt tokens per 1M
$0.15$0.03
Completion Price
per 1M tokens
$0.47$0.8
Sample Workload Cost
1M input + 500K output
$0.39$0.43
Context Window1M1.31M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionQwen3.8 Omni FlashOn the standard 1M input plus 500K output workload, Qwen3.8 Omni Flash is estimated at $0.39 vs $0.43 for DeepSeek V4 Flash Latest, saving $0.05 (10.5% lower).
High-volume input processingDeepSeek V4 Flash LatestLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsQwen3.8 Omni FlashLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workDeepSeek V4 Flash LatestA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Larger context near this budget
  • No larger-context model is currently tracked within a close sample-cost band.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

Open cheapest models

Larger context alternatives

Find models with larger context windows for RAG, long documents, and codebase review.

Open largest context models

Provider catalogs

Compare models within provider hubs before choosing a final API vendor.

Open provider hubs

Qwen catalog

Review all tracked Qwen models before deciding whether this matchup is the right shortlist.

Open Qwen models

DeepSeek catalog

Check other DeepSeek models with comparable pricing, context, or release timing.

Open DeepSeek models
Qwen3.8 Omni Flash

Qwen3.8 Omni Flash is an omni-modal reasoning model from Alibaba, the first Qwen model built around agentic capabilities with native audio-video understanding. It is suited for audio-video analysis and summarization,...

DeepSeek V4 Flash Latest

This model always redirects to the latest model in the DeepSeek V4 Flash family.