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AI model comparison

DeepSeek V4.1 Flash 1017 vs Claude Haiku 4.5

Side by side comparison of DeepSeek V4.1 Flash 1017 and Claude Haiku 4.5 on pricing, benchmark scores, context window, and more.

DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name.

Input / 1M
$0.15
Output / 1M
$0.60
Context
1.05M

Claude Haiku 4.5 is Anthropic’s fastest and most efficient model, delivering near-frontier intelligence at a fraction of the cost and latency of larger Claude models.

Input / 1M
$1
Output / 1M
$5
Context
200K

Comparing image generators? Compare image models

At a glance

Quick verdict

How the two models stack up on the things people ask about most.

Lower price

deepseek logo

DeepSeek V4.1 Flash 1017

7.5x cheaper for a typical chat

Higher intelligence score

Not available

Not enough benchmark data

Larger context window

deepseek logo

DeepSeek V4.1 Flash 1017

1.05M vs 200K tokens

Newer release

deepseek logo

DeepSeek V4.1 Flash 1017

Released October 17, 2026

Benchmarks

Benchmark scores

Independent scores from Artificial Analysis. Higher is better.

Intelligence index

deepseek logoDeepSeek V4.1 Flash 1017Not available
anthropic logoClaude Haiku 4.5Not available

Coding index

deepseek logoDeepSeek V4.1 Flash 1017Not available
anthropic logoClaude Haiku 4.543.9

Agentic index

deepseek logoDeepSeek V4.1 Flash 1017Not available
anthropic logoClaude Haiku 4.58

Pricing

DeepSeek V4.1 Flash 1017 vs Claude Haiku 4.5 API pricing

Per-token API rates. Cheaper option highlighted.

Metricdeepseek logoDeepSeek V4.1 Flash 1017anthropic logoClaude Haiku 4.5
Input tokensPer 1M tokens$0.15$1
Output tokensPer 1M tokens$0.60$5
Cached input (read)Per 1M tokens$0.00$0.10
Cache writePer 1M tokensNot available$1.25
Web searchPer requestNot available$0.01

What it costs in practice

Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.

Chat message

2K in, 500 out

deepseek logoDeepSeek V4.1 Flash 1017$0.60
anthropic logoClaude Haiku 4.5$4.50

Coding task

30K in, 4K out

deepseek logoDeepSeek V4.1 Flash 1017$6.90$2.49 cached
anthropic logoClaude Haiku 4.5$50$23 cached

Long document summary

150K in, 2K out

deepseek logoDeepSeek V4.1 Flash 1017$23.70$1.65 cached
anthropic logoClaude Haiku 4.5$160$25 cached

Specs

Context window and capabilities

How much each model can read, how much it can write, and what it accepts as input.

Metricdeepseek logoDeepSeek V4.1 Flash 1017anthropic logoClaude Haiku 4.5
Context window1.05M tokens200K tokens
Max output393K tokens64K tokens
Input typesImage, TextFile, Image, Text
Output typesTextText
Reasoning effort levelsMax, High, Low, NoneNot available
Default reasoning effortHighNot available
Release dateOctober 17, 2026October 15, 2025

Features

Supported features

API features available for each model.

Metricdeepseek logoDeepSeek V4.1 Flash 1017anthropic logoClaude Haiku 4.5
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedSupported
TemperatureSupportedSupported
Stop sequencesSupportedSupported
Deterministic seedSupportedNot supported
Verbosity controlNot supportedNot supported

Our take

DeepSeek V4.1 Flash 1017 is 7.5x cheaper for a typical chat. DeepSeek V4.1 Flash 1017 has the larger context window (1.05M vs 200K tokens). The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is DeepSeek V4.1 Flash 1017 or Claude Haiku 4.5 cheaper?

DeepSeek V4.1 Flash 1017 is cheaper for a typical chat (2K input tokens and 500 output tokens). DeepSeek V4.1 Flash 1017 costs $0.15 per 1M input tokens and $0.60 per 1M output tokens, while Claude Haiku 4.5 costs $1 per 1M input tokens and $5 per 1M output tokens.

Which has a bigger context window, DeepSeek V4.1 Flash 1017 or Claude Haiku 4.5?

DeepSeek V4.1 Flash 1017 supports up to 1.05M tokens of context, compared with 200K for Claude Haiku 4.5.

Can I use DeepSeek V4.1 Flash 1017 and Claude Haiku 4.5 at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see DeepSeek V4.1 Flash 1017 and Claude Haiku 4.5 answer side by side and keep the better response.

deepseek logoanthropic logo

Why choose? Ask both.

Send one prompt to DeepSeek V4.1 Flash 1017 and Claude Haiku 4.5 at the same time. Compare the answers side by side and keep the best one.

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