API cost decision in 10 seconds

Qwen3.5 397B A17B vs Claude Opus 4.6

Pick Qwen3.5 397B A17B for lower cost; pick Claude Opus 4.6 only if the larger context window matters more.

Pricing data updated:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Qwen3.5 397B A17B for lower cost; pick Claude Opus 4.6 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Qwen3.5 397B A17B is estimated at $1.56 vs $17.5 for Claude Opus 4.6, saving $15.94 (91.1% lower).

Cost-first pickQwen3.5 397B A17B
Context-first pickClaude Opus 4.6
Sample savings$15.9491.1%
10x traffic gap$159.4

Claude Opus 4.6 has more context, but Qwen3.5 397B A17B saves $15.94 on the standard workload. At 10x that traffic, the same price gap is about $159.4. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Qwen3.5 397B A17B stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickQwen3.5 397B A17BClaude Opus 4.6
Input-heavy / RAG5M input + 500K outputQwen3.5 397B A17B$3.12$37.5
Balanced workload1M input + 1M outputQwen3.5 397B A17B$2.73$30
Output-heavy chatbot1M input + 5M outputQwen3.5 397B A17B$12.09$130
Cheaper input Qwen3.5 397B A17B $0.39 vs $5 / 1M

Qwen3.5 397B A17B is $4.61 cheaper per 1M input tokens (92.2% lower; 12.8x difference).

Cheaper output Qwen3.5 397B A17B $2.34 vs $25 / 1M

Qwen3.5 397B A17B is $22.66 cheaper per 1M output tokens (90.6% lower; 10.7x difference).

Larger context Claude Opus 4.6 262.14K vs 1M

Claude Opus 4.6 has 737.86K more context (3.81x larger).

Sample workload Qwen3.5 397B A17B $1.56 vs $17.5

Qwen3.5 397B A17B is $15.94 cheaper on the standard workload (91.1% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Qwen3.5 397B A17B Calculating… Estimated API cost
Claude Opus 4.6 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

Qwen3.5 397B A17B has the lower input price; Qwen3.5 397B A17B has the lower output price; Claude Opus 4.6 offers the larger context window. For the 1M input plus 500K output sample, Qwen3.5 397B A17B is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $1.56 for Qwen3.5 397B A17B and $17.5 for Claude Opus 4.6.

Best Fit

Choose Qwen3.5 397B A17B when you care most about lower input-token price, and lower output-token price.

Choose Claude Opus 4.6 when you care most about larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, Qwen3.5 397B A17B is estimated at $1.56 vs $17.5 for Claude Opus 4.6, saving $15.94 (91.1% lower).
  • Qwen3.5 397B A17B is $15.94 cheaper on the standard workload (91.1% lower).
  • Qwen3.5 397B A17B is $4.61 cheaper per 1M input tokens (92.2% lower; 12.8x difference).
  • Qwen3.5 397B A17B is $22.66 cheaper per 1M output tokens (90.6% lower; 10.7x difference).
  • Claude Opus 4.6 has 737.86K more context (3.81x larger).
Head-to-Head Specs
FeatureQwen3.5 397B A17B
(Qwen)
Claude Opus 4.6
(Anthropic)
Input Price
prompt tokens per 1M
$0.39$5
Completion Price
per 1M tokens
$2.34$25
Sample Workload Cost
1M input + 500K output
$1.56$17.5
Context Window262.14K1M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionQwen3.5 397B A17BOn the standard 1M input plus 500K output workload, Qwen3.5 397B A17B is estimated at $1.56 vs $17.5 for Claude Opus 4.6, saving $15.94 (91.1% lower).
High-volume input processingQwen3.5 397B A17BLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsQwen3.5 397B A17BLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workClaude Opus 4.6A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Popular competitors
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Provider catalogs

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Qwen catalog

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Anthropic catalog

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Qwen3.5 397B A17B

The Qwen3.5 series 397B-A17B native vision-language model is built on a hybrid architecture that integrates a linear attention mechanism with a sparse mixture-of-experts model, achieving higher inference efficiency. It delivers...

Claude Opus 4.6

Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective...