API cost decision in 10 seconds

DeepSeek V3.1 vs Qwen3 235B A22B Thinking 2507

Pick DeepSeek V3.1 for lower cost; pick Qwen3 235B A22B Thinking 2507 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 DeepSeek V3.1 for lower cost; pick Qwen3 235B A22B Thinking 2507 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, DeepSeek V3.1 is estimated at $0.6 vs $0.9 for Qwen3 235B A22B Thinking 2507, saving $0.29 (32.6% lower).

Cost-first pickDeepSeek V3.1
Context-first pickQwen3 235B A22B Thinking 2507
Sample savings$0.2932.6%
10x traffic gap$2.92

Qwen3 235B A22B Thinking 2507 has more context, but DeepSeek V3.1 saves $0.29 on the standard workload. At 10x that traffic, the same price gap is about $2.92. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

DeepSeek V3.1 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickDeepSeek V3.1Qwen3 235B A22B Thinking 2507
Input-heavy / RAG5M input + 500K outputDeepSeek V3.1$1.45$1.5
Balanced workload1M input + 1M outputDeepSeek V3.1$1$1.64
Output-heavy chatbot1M input + 5M outputDeepSeek V3.1$4.16$7.62
Cheaper input Qwen3 235B A22B Thinking 2507 $0.21 vs $0.1495 / 1M

Qwen3 235B A22B Thinking 2507 is $0.06 cheaper per 1M input tokens (28.8% lower; 1.4x difference).

Cheaper output DeepSeek V3.1 $0.79 vs $1.495 / 1M

DeepSeek V3.1 is $0.71 cheaper per 1M output tokens (47.2% lower; 1.89x difference).

Larger context Qwen3 235B A22B Thinking 2507 163.84K vs 262.14K

Qwen3 235B A22B Thinking 2507 has 98.3K more context (1.6x larger).

Sample workload DeepSeek V3.1 $0.6 vs $0.9

DeepSeek V3.1 is $0.29 cheaper on the standard workload (32.6% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
DeepSeek V3.1 Calculating… Estimated API cost
Qwen3 235B A22B Thinking 2507 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

Qwen3 235B A22B Thinking 2507 has the lower input price; DeepSeek V3.1 has the lower output price; Qwen3 235B A22B Thinking 2507 offers the larger context window. For the 1M input plus 500K output sample, DeepSeek V3.1 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $0.6 for DeepSeek V3.1 and $0.9 for Qwen3 235B A22B Thinking 2507.

Best Fit

Choose DeepSeek V3.1 when you care most about lower output-token price.

Choose Qwen3 235B A22B Thinking 2507 when you care most about lower input-token price, and larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, DeepSeek V3.1 is estimated at $0.6 vs $0.9 for Qwen3 235B A22B Thinking 2507, saving $0.29 (32.6% lower).
  • DeepSeek V3.1 is $0.29 cheaper on the standard workload (32.6% lower).
  • Qwen3 235B A22B Thinking 2507 is $0.06 cheaper per 1M input tokens (28.8% lower; 1.4x difference).
  • DeepSeek V3.1 is $0.71 cheaper per 1M output tokens (47.2% lower; 1.89x difference).
  • Qwen3 235B A22B Thinking 2507 has 98.3K more context (1.6x larger).
Head-to-Head Specs
FeatureDeepSeek V3.1
(DeepSeek)
Qwen3 235B A22B Thinking 2507
(Qwen)
Input Price
prompt tokens per 1M
$0.21$0.1495
Completion Price
per 1M tokens
$0.79$1.495
Sample Workload Cost
1M input + 500K output
$0.6$0.9
Context Window163.84K262.14K
Release Date
Popularity#59#133

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionDeepSeek V3.1On the standard 1M input plus 500K output workload, DeepSeek V3.1 is estimated at $0.6 vs $0.9 for Qwen3 235B A22B Thinking 2507, saving $0.29 (32.6% lower).
High-volume input processingQwen3 235B A22B Thinking 2507Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsDeepSeek V3.1Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workQwen3 235B A22B Thinking 2507A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • DeepSeek V4 Flash (free) can replace DeepSeek V3.1 when lower sample workload cost matters most: $0.
  • DeepSeek V4 Flash can replace DeepSeek V3.1 when lower sample workload cost matters most: $0.2.
  • R1 Distill Qwen 32B can replace DeepSeek V3.1 when lower sample workload cost matters most: $0.43.
  • DeepSeek V3.2 can replace DeepSeek V3.1 when lower sample workload cost matters most: $0.44.
Larger context near this budget

Cheaper alternatives

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Larger context alternatives

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

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Provider catalogs

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DeepSeek catalog

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

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Qwen catalog

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

Open Qwen models
DeepSeek V3.1

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

Qwen3 235B A22B Thinking 2507

Qwen3-235B-A22B-Thinking-2507 is a high-performance, open-weight Mixture-of-Experts (MoE) language model optimized for complex reasoning tasks. It activates 22B of its 235B parameters per forward pass and natively supports up to 262,144...