Claude Sonnet 5.5 vs DeepSeek V3 0324

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
DeepSeekV3 0324

DeepSeek V3, a 685B-parameter, mixture-of-experts model, is the latest iteration of the flagship chat model family from the DeepSeek team.

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Reasoning estimated
Speed estimated
Input
Output
Context
164 K tokens
Max output
▲147 K
Input, $ per 1M tokens
▲$0.290
Output, $ per 1M tokens
▲$1.14
Cache read, $ per 1M
$0.110
Batch (input / output)
—
Tool calling
Yes
Released
03/24/2025
Knowledge cutoff
—
API id
deepseek/deepseek-chat-v3-0324
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 DeepSeek V3 0324?

  • DeepSeek V3 0324: cheapest input (86% less than Claude Sonnet 5.5)
  • DeepSeek V3 0324: 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)

DeepSeek V3 0324 costs 86% less on input and 89% less on output than Claude Sonnet 5.5 ($0.290 / $1.14 versus $2.00 / $10.00 per million tokens). Claude Sonnet 5.5 accepts more context (1 M). On capabilities, Claude Sonnet 5.5 accepts images; Claude Sonnet 5.5 has a reasoning mode. 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
DeepSeek V3 0324
$8.91/mo

With DeepSeek V3 0324 you save $61.09 a month versus Claude Sonnet 5.5 (87% 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. 1DeepSeek V3 0324 DeepSeek$0.022
  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 DeepSeek V3 0324?

DeepSeek V3 0324 costs 86% less on input and 89% less on output than Claude Sonnet 5.5 ($0.290 / $1.14 versus $2.00 / $10.00 per million tokens). Claude Sonnet 5.5 accepts more context (1 M). On capabilities, Claude Sonnet 5.5 accepts images; Claude Sonnet 5.5 has a reasoning mode. 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 DeepSeek V3 0324?

DeepSeek V3 0324 is cheaper: $0.290 per million input tokens and $1.14 per million output tokens, versus $2.00 / $10.00 for Claude Sonnet 5.5.

Which has more context: Claude Sonnet 5.5 and DeepSeek V3 0324?

Claude Sonnet 5.5 accepts 1 M tokens of context; DeepSeek V3 0324 accepts 164 K.

Which is newer: Claude Sonnet 5.5 and DeepSeek V3 0324?

Claude Sonnet 5.5 was released on 09/28/2026; DeepSeek V3 0324 on 03/24/2025.

What would 10,000 requests a month cost with Claude Sonnet 5.5 and DeepSeek V3 0324?

With 1,500 input and 400 output tokens per request: Claude Sonnet 5.5: $70.00; DeepSeek V3 0324: $8.91 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.