Claude Sonnet 5.5 vs Qwen3.5-9B

Pick up to 3 models · pricing, context and capabilities · simulate your product cost

Data updated on September 30, 2026· 217 models

AnthropicSonnet 5.5

Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade.

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Reasoning estimated
▲
Speed estimated
Input
Output
Context
▲1 M tokens
Max output
▲128 K
Input, $ per 1M tokens
$2.00
Output, $ per 1M tokens
$10.00
Cache read, $ per 1M
$0.200
Batch (input / output)
$1.00 / $5.00
Tool calling
Yes
Released
▲09/28/2026
Knowledge cutoff
2026-06
API id
anthropic/claude-sonnet-5.5
QwenQwen3.5-9B

Qwen3.5-9B is a multimodal foundation model from the Qwen3.5 family, designed to deliver strong reasoning, coding, and visual understanding in an efficient 9B-parameter architecture.

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Reasoning estimated
Speed estimated
▲
Input
Output
Context
262 K tokens
Max output
33 K
Input, $ per 1M tokens
▲$0.100
Output, $ per 1M tokens
▲$0.150
Cache read, $ per 1M
—
Batch (input / output)
—
Tool calling
Yes
Released
02/23/2026
Knowledge cutoff
—
API id
qwen/qwen3.5-9b
Third model (optional)
text image audio video PDF / file reasoning (1 to 5, estimated by family) speed (1 to 4, estimated by family)▲ best value among the selected

Which is the better API choice: Claude Sonnet 5.5 vs Qwen3.5-9B?

  • Qwen3.5-9B: cheapest input (95% less than Claude Sonnet 5.5)
  • Qwen3.5-9B: cheapest output
  • Claude Sonnet 5.5: largest context (1 M)
  • Claude Sonnet 5.5: the newest (09/28/2026)
  • Claude Sonnet 5.5: most reasoning (estimated)
  • Qwen3.5-9B: the fastest (estimated)

Qwen3.5-9B costs 95% less on input and 99% less on output than Claude Sonnet 5.5 ($0.100 / $0.150 versus $2.00 / $10.00 per million tokens). Claude Sonnet 5.5 accepts more context (1 M). Claude Sonnet 5.5 offers a batch tier at half price for jobs that do not need an immediate answer.

What would your product cost?

Estimate the monthly cost with your app's real volume. List prices, no cache or batch discounts.

Claude Sonnet 5.5
$70.00/mo
Qwen3.5-9B
$2.10/mo

With Qwen3.5-9B you save $67.90 a month versus Claude Sonnet 5.5 (97% less).

The 6 cheapest for this scenario (chat, last 12 months)

  1. 1Lyria 3 Pro Preview Google$0.00
  2. 2Lyria 3 Clip Preview Google$0.00
  3. 3Qwen3.7 Flash Qwen$0.97
  4. 4DeepSeek V4 Flash 0731 DeepSeek$1.55
  5. 5Ministral 3 3B 2512 Mistral$1.90
  6. 6Qwen3.5-Flash Qwen$2.02

Paste your prompt: tokens and cost per model

Rough estimate (about 4 characters per token). Nothing is sent to any server.

76tokens approx.287 characters

Cost of sending it 1,000 times (input only)

  1. 1Qwen3.5-9B Qwen$0.008
  2. 2Claude Sonnet 5.5 Anthropic$0.152
  3. 3Claude Sonnet 5 Anthropic$0.152
  4. 4Claude Opus 5.5 Anthropic$0.304
  5. 5Claude Opus 5 Anthropic$0.380
  6. 6Claude Opus 4.8 Anthropic$0.380
  7. 7Claude Fable 5.1 Anthropic$0.760
  8. 8Claude Fable 5 Anthropic$0.760

Popular comparisons

Frequently asked questions

Which is the better API choice: Claude Sonnet 5.5 vs Qwen3.5-9B?

Qwen3.5-9B costs 95% less on input and 99% less on output than Claude Sonnet 5.5 ($0.100 / $0.150 versus $2.00 / $10.00 per million tokens). Claude Sonnet 5.5 accepts more context (1 M). Claude Sonnet 5.5 offers a batch tier at half price for jobs that do not need an immediate answer.

Which is cheaper: Claude Sonnet 5.5 and Qwen3.5-9B?

Qwen3.5-9B is cheaper: $0.100 per million input tokens and $0.150 per million output tokens, versus $2.00 / $10.00 for Claude Sonnet 5.5.

Which has more context: Claude Sonnet 5.5 and Qwen3.5-9B?

Claude Sonnet 5.5 accepts 1 M tokens of context; Qwen3.5-9B accepts 262 K.

Which is newer: Claude Sonnet 5.5 and Qwen3.5-9B?

Claude Sonnet 5.5 was released on 09/28/2026; Qwen3.5-9B on 02/23/2026.

What would 10,000 requests a month cost with Claude Sonnet 5.5 and Qwen3.5-9B?

With 1,500 input and 400 output tokens per request: Claude Sonnet 5.5: $70.00; Qwen3.5-9B: $2.10 a month, at list price.

Where do the prices come from and how often are they updated?

From the public catalogs of OpenRouter, models.dev and LiteLLM, which publish each provider's list prices. They sync once a day and the last update date is shown above the comparison.

What does price per million tokens mean?

It is what the provider charges per million tokens you send (input) or the model generates (output). A token is roughly 4 characters. Output almost always costs more than input.

Sources: OpenRouter, models.dev and LiteLLM. Prices in USD per million tokens, list price, no volume discounts. Prompt tokens are an estimate; each provider's tokenizer may differ.