API cost decision in 10 seconds

NewXing4.0 29B A4B (free) vs DeepSeek V4 Flash Latest

Pick Xing4.0 29B A4B (free) 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 Xing4.0 29B A4B (free) 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, Xing4.0 29B A4B (free) is estimated at $0 vs $0.65 for DeepSeek V4 Flash Latest, saving $0.65 (100% lower).

Cost-first pickXing4.0 29B A4B (free)
Context-first pickDeepSeek V4 Flash Latest
Sample savings$0.65100%
10x traffic gap$6.49

DeepSeek V4 Flash Latest has more context, but Xing4.0 29B A4B (free) saves $0.65 on the standard workload. At 10x that traffic, the same price gap is about $6.49. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Xing4.0 29B A4B (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickXing4.0 29B A4B (free)DeepSeek V4 Flash Latest
Input-heavy / RAG5M input + 500K outputXing4.0 29B A4B (free)$0$0.69
Balanced workload1M input + 1M outputXing4.0 29B A4B (free)$0$1.29
Output-heavy chatbot1M input + 5M outputXing4.0 29B A4B (free)$0$6.41
Cheaper input Xing4.0 29B A4B (free) $0 vs $0.0094 / 1M

Xing4.0 29B A4B (free) is free for input tokens while DeepSeek V4 Flash Latest costs $0.0094 per 1M tokens.

Cheaper output Xing4.0 29B A4B (free) $0 vs $1.28 / 1M

Xing4.0 29B A4B (free) is free for output tokens while DeepSeek V4 Flash Latest costs $1.28 per 1M tokens.

Larger context DeepSeek V4 Flash Latest 262.14K vs 1.05M

DeepSeek V4 Flash Latest has 786.43K more context (4x larger).

Sample workload Xing4.0 29B A4B (free) $0 vs $0.65

Xing4.0 29B A4B (free) is free for the standard workload while the other model is estimated at $0.65.

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Xing4.0 29B A4B (free) 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

Xing4.0 29B A4B (free) has the lower input price; Xing4.0 29B A4B (free) has the lower output price; DeepSeek V4 Flash Latest offers the larger context window. For the 1M input plus 500K output sample, Xing4.0 29B A4B (free) is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0 for Xing4.0 29B A4B (free) and $0.65 for DeepSeek V4 Flash Latest.

Best Fit

Choose Xing4.0 29B A4B (free) when you care most about lower input-token price, and lower output-token price.

Choose DeepSeek V4 Flash Latest when you care most about larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Xing4.0 29B A4B (free) is estimated at $0 vs $0.65 for DeepSeek V4 Flash Latest, saving $0.65 (100% lower).
  • Xing4.0 29B A4B (free) is free for the standard workload while the other model is estimated at $0.65.
  • Xing4.0 29B A4B (free) is free for input tokens while DeepSeek V4 Flash Latest costs $0.0094 per 1M tokens.
  • Xing4.0 29B A4B (free) is free for output tokens while DeepSeek V4 Flash Latest costs $1.28 per 1M tokens.
  • DeepSeek V4 Flash Latest has 786.43K more context (4x larger).
Head-to-Head Specs
FeatureNewXing4.0 29B A4B (free)
(XingChen)		DeepSeek V4 Flash Latest
(DeepSeek)
Input Price
prompt tokens per 1M		$0$0.0094
Completion Price
per 1M tokens		$0$1.28
Sample Workload Cost
1M input + 500K output		$0$0.65
Context Window262.14K1.05M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionXing4.0 29B A4B (free)On the standard 1M input plus 500K output workload, Xing4.0 29B A4B (free) is estimated at $0 vs $0.65 for DeepSeek V4 Flash Latest, saving $0.65 (100% lower).
High-volume input processingXing4.0 29B A4B (free)Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsXing4.0 29B A4B (free)Lower 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
  • Llama 4 Scout offers 1.31M context with $0.25 sample workload cost.
  • MiMo-V2.6-Flash offers 1.05M context with $0.28 sample workload cost.
  • GPT-6 Luna offers 1.05M context with $0.35 sample workload cost.
  • GPT-6 Luna Pro offers 1.05M context with $0.35 sample workload cost.

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

XingChen catalog

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

Open XingChen models

DeepSeek catalog

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

Open DeepSeek models
Xing4.0 29B A4B (free)

Xing4.0-29B-A4B is an open-weight mixture-of-experts language model from China Telecom's AI team (TeleAI) and the successor to the TeleChat series. It has 29B total parameters with 4B active per token...

DeepSeek V4 Flash Latest

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