DeepSeek V4 Flash vs Claude Sonnet 4.6

DeepSeek V4 Flash from DeepSeek and Claude Sonnet 4.6 from Anthropic are shown side by side so you can compare pricing, model IDs, context and output limits, modalities, tool use, release details, and benchmark results where data is available.

Overall Recommendation

Claude Sonnet 4.6 is the stronger production default, with higher Intelligence and Coding indexes plus image and PDF input. Choose DeepSeek V4 Flash for the lowest-cost, high-throughput text workloads and 384K output.

Recommendation based on DeepSeek V4 Flash (Reasoning, Max Effort) vs Claude Sonnet 4.6 (Adaptive Reasoning, Max Effort).

Comparison Highlights

DeepSeek V4 FlashDeepSeek
Claude Sonnet 4.6Anthropic
Best For
High-throughputcost-sensitive long-context workloads
Balanced codingagentsproduction knowledge work
How To Read ItUse-case synthesis from model capabilities and positioning.
Workload Fit
ThroughputLow costLong context
CodingAgentsProduction
How To Read ItThe workloads each model is most directly shaped for.
Input
$0.4286/MEdge
$3/M
How To Read ItLower is better when prompts or retrieval payloads are large.
Output
$1.2857/MEdge
$15/M
How To Read ItLower is better for reasoning-heavy or long-generation traffic.
Context length
1M
1M
How To Read ItHigher is better for repositories, retrieval packs, and transcripts.
Input modalities
Text
Image, PDF, TextEdge
How To Read ItBroader input support reduces the need for separate vision or video models.

Model Selection Guide

DeepSeek V4 FlashDeepSeek

Choose DeepSeek V4 Flash When

  • The lowest listed price: $0.15 input and $0.30 output per million tokens
  • A 40.3 Intelligence Index and 38.7 Coding Index in TokenHub’s max-effort profile
  • A 1M context window and 384K maximum output for high-volume text workloads
Claude Sonnet 4.6Anthropic

Choose Claude Sonnet 4.6 When

  • A 47.2 Intelligence Index and 50.9 Coding Index in TokenHub’s max-effort profile
  • $3 input and $15 output per million tokens
  • A 1M context window, 64K maximum output, and text, image, and PDF input

Basic Information

DeepSeek V4 FlashDeepSeek
Claude Sonnet 4.6Anthropic

Name

DeepSeek V4 FlashDeepSeek V4 Flash

Model id

DeepSeek V4 Flashdeepseek-v4-flash

Intro

DeepSeek V4 FlashDeepSeek V4 Flash keeps the V4 family’s 1M-token context window but uses a lighter MoE configuration, commonly described as 284B total parameters with 13B activated parameters. The emphasis is throughput: fast inference, lower cost per call, and production workloads that still need long-context handling. It is the better fit when the task volume is high and the workload benefits from V4-style long-context architecture without always requiring the deepest reasoning tier.

Author

DeepSeek V4 FlashDeepSeek

Released date

DeepSeek V4 Flash2026-04-24

Context length

DeepSeek V4 Flash1M

Max output tokens

DeepSeek V4 Flash384K

Name

Claude Sonnet 4.6Claude Sonnet 4.6

Model id

Claude Sonnet 4.6claude-sonnet-4.6

Intro

Claude Sonnet 4.6Claude Sonnet 4.6 is presented as a broad upgrade for coding, computer use, long-context reasoning, agent planning, knowledge work, and design. Anthropic materials describe it as a strong middle tier with 1M-context beta support and better agent behavior. It is suited to teams that want near-frontier capability with more practical cost and latency than Opus.

Author

Claude Sonnet 4.6Anthropic

Released date

Claude Sonnet 4.62026-02-17

Context length

Claude Sonnet 4.61M

Max output tokens

Claude Sonnet 4.664K

Pricing

DeepSeek V4 FlashDeepSeek
Claude Sonnet 4.6Anthropic

Input

DeepSeek V4 Flash$0.4286/M

Output

DeepSeek V4 Flash$1.2857/M

Cached input

DeepSeek V4 Flash$0.0143/M

Input

Claude Sonnet 4.6$3/M

Output

Claude Sonnet 4.6$15/M

Cached input

Claude Sonnet 4.6$0.3/M

Capabilities

DeepSeek V4 FlashDeepSeek
Claude Sonnet 4.6Anthropic

Reasoning

DeepSeek V4 Flash

Knowledge

DeepSeek V4 Flash2025-05-01

Attachment

DeepSeek V4 Flash

Input modalities

DeepSeek V4 FlashText

Output modalities

DeepSeek V4 FlashText

Temperature

DeepSeek V4 Flash

Tool use

DeepSeek V4 Flash

Reasoning

Claude Sonnet 4.6

Knowledge

Claude Sonnet 4.62025-08-31

Attachment

Claude Sonnet 4.6

Input modalities

Claude Sonnet 4.6Image, PDF, Text

Output modalities

Claude Sonnet 4.6Text

Temperature

Claude Sonnet 4.6

Tool use

Claude Sonnet 4.6

Benchmark

DeepSeek V4 FlashDeepSeek
Claude Sonnet 4.6Anthropic

Intelligence

40.3

Coding

38.7

Intelligence

wins47.2

Coding

wins50.9

Knowledge & Reasoning

GPQA

wins89.4%

HLE

wins32.1%

GPQA

87.5%

HLE

30%

Coding

SciCode

44.9%

Terminal-Bench Hard

35.6%

SciCode

wins46.8%

Terminal-Bench Hard

wins53.0%

Instruction Following & Agent Tasks

IFBench

wins79.2%

AA-LCR

63%

Tau2

wins95.0%

IFBench

56.6%

AA-LCR

wins70.7%

Tau2

75.7%

FAQ

Which model is better, DeepSeek V4 Flash or Claude Sonnet 4.6?

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DeepSeek V4 Flash and Claude Sonnet 4.6 should be compared by workload. This page places price, context, output limits, capabilities, and benchmark data side by side. It is also relevant to: deepseek vs claude.

Is Claude Sonnet 4.6 cheaper than DeepSeek V4 Flash?

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Use the pricing rows above to compare input, output, and cached input prices for DeepSeek V4 Flash and Claude Sonnet 4.6.

Which model supports a longer context length?

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DeepSeek V4 Flash lists 1M context length, while Claude Sonnet 4.6 lists 1M.

Can I access both models through TokenHub?

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If both models are available in the TokenHub catalog, you can route requests to DeepSeek V4 Flash and Claude Sonnet 4.6 through the TokenHub API.