The Known Good Updated 25 Jul 2026
Anthropic: Claude Sonnet 4.6 vs DeepSeek: DeepSeek V3 0324 ·Anthropic vs DeepSeek

Anthropic: Claude Sonnet 4.6 vs DeepSeek: DeepSeek V3 0324 — head-to-head comparison

Anthropic: Claude Sonnet 4.6 profile DeepSeek: DeepSeek V3 0324 profile All comparisons
Anthropic: Claude Sonnet 4.6 — Anthropic
Quality
#17 of 61
80based on 4 of 6 evaluations
Known Good Index
Speed
#197 of 316
41.2
Output tokens per second
Price
#301 of 340
$6.00
Blended per 1M tokens
In $3.00 · Out $15.00
Cache hit price
#165 of 206
$0.30
per 1M tokens (−90%)
Context
#55 of 345
1.00M
tokens (~1,500 pages)
DeepSeek: DeepSeek V3 0324 — DeepSeek
Quality
#35 of 61
60based on 3 of 6 evaluations
Known Good Index
Speed
#256 of 316
26.1
Output tokens per second
Price
#133 of 340
$0.48
Blended per 1M tokens
In $0.27 · Out $1.12
Cache hit price
#118 of 206
$0.14
per 1M tokens (−50%)
Context
#224 of 345
164k
tokens (~300 pages)
Summary

On the Known Good Index, Anthropic: Claude Sonnet 4.6 scores 80 and DeepSeek: DeepSeek V3 0324 scores 60 — a 20-point lead for Anthropic: Claude Sonnet 4.6. They share 2 published evaluations, with Anthropic: Claude Sonnet 4.6 ahead on 2 and DeepSeek: DeepSeek V3 0324 ahead on 0.

Blended pricing is $6.00 per 1M tokens for Anthropic: Claude Sonnet 4.6 and $0.48 for DeepSeek: DeepSeek V3 0324 — DeepSeek: DeepSeek V3 0324 is about 12.4× cheaper.

Throughput is 41 tokens per second for Anthropic: Claude Sonnet 4.6 and 26 for DeepSeek: DeepSeek V3 0324, with time to first token at 1.6s and 1.1s. Anthropic: Claude Sonnet 4.6 accepts 1.00M tokens of context against 164k.

Anthropic: Claude Sonnet 4.6 is proprietary; DeepSeek: DeepSeek V3 0324 is open weights. 8 tracked hosts serve one or both.

Generated from tracked data on 25 Jul 2026 · how these comparisons are computed →

At a glance
MetricAnthropic: Claude Sonnet 4.6DeepSeek: DeepSeek V3 0324
Known Good Index 80 based on 4 of 6 evaluations 60 based on 3 of 6 evaluations
Blended $/1M $6.00 $0.48
Output tok/s 41 26
Context window 1.00M 164k
Providers 4 4
Jump to section

Quality

Known Good Index and the capability indices, side by side

IndicesComponents
Index scores

Each index is min-max normalised across tracked models and scaled 0–100 from published evaluations. We do not run these evaluations.

MetricAnthropic: Claude Sonnet 4.6DeepSeek: DeepSeek V3 0324
Known Good Index 80 60
Coding Index 71
Mathematics Index 86 57
Science Index 91 67
Reasoning Index 65
Agentic Index 71
Openness Index 5 100
The Known Good

Quality Breakdown

Every evaluation both models report a published score for

Evaluations both models report

Bar = Anthropic: Claude Sonnet 4.6 · marker = DeepSeek: DeepSeek V3 0324 · scores ingested from Epoch AI (CC-BY 4.0)

GPQA Diamond87 / 68
MATH / AIME86 / 38

Right-hand figures read Anthropic: Claude Sonnet 4.6 / DeepSeek: DeepSeek V3 0324. Anthropic: Claude Sonnet 4.6 leads on 2 of 2, DeepSeek: DeepSeek V3 0324 on 0.

The Known Good

Arena Elo

Human preference rating from blind pairwise votes

Arena ratings

Elo from blind pairwise votes, ingested from Arena. Higher is better.

MetricAnthropic: Claude Sonnet 4.6DeepSeek: DeepSeek V3 0324
Text Arena 1,458 1,375
Text Arena (style controlled) 1,473 1,396
The Known Good

Price & Cost

Published API pricing by token type

Per token typeCache discount
Published pricing

USD per 1M tokens. Blended is a 3:1 input:output mix. Live from OpenRouter, cross-checked against models.dev. Lower is better.

MetricAnthropic: Claude Sonnet 4.6DeepSeek: DeepSeek V3 0324
Input $/1M $3.00 $0.27
Output $/1M $15.00 $1.12
Blended $/1M $6.00 $0.48
Cache read $/1M $0.300 $0.135
The Known Good
We publish blended price rather than cost-per-task. Cost-per-task requires token counts from an evaluation suite we do not run. Blended price is computed from published rates and is fully reproducible — see the pricing methodology.

Context Window

Maximum input accepted and maximum output emitted

Context and output limits

Provider-declared limits, from metadata via models.dev and OpenRouter. Higher is better.

MetricAnthropic: Claude Sonnet 4.6DeepSeek: DeepSeek V3 0324
Context window 1.00M 164k
Max output tokens 128k 66k
The Known Good

Speed & Latency

Median throughput and time to first token across hosting providers

Output speedTime to first token
Throughput and latency

Medians across all tracked providers, derived from OpenRouter endpoint telemetry.

MetricAnthropic: Claude Sonnet 4.6DeepSeek: DeepSeek V3 0324
Output tokens/s 41 26
Time to first token 1.6s 1.1s
The Known Good

Providers

Which hosts serve each model, and at what price and speed

8 hosts
Full provider benchmarks →
Provider Anthropic: Claude Sonnet 4.6 blendedAnthropic: Claude Sonnet 4.6 tok/s DeepSeek: DeepSeek V3 0324 blendedDeepSeek: DeepSeek V3 0324 tok/s
Amazon Bedrock · first party $6.00 41
Google · first party $6.00 41
Anthropic · first party $6.00 38
Azure · first party $6.00
Crusoe $0.75 37
Novita $0.48 30
DeepInfra $0.41 25
SiliconFlow $0.44 21

Per-host pricing and telemetry from OpenRouter. A dash means that host does not serve that model.

The Known Good
Sources for this page
Pricing & providers — OpenRouter Metadata — models.dev Benchmarks — Epoch AI (CC-BY 4.0)Elo — Arena Full attribution →