Claude Haiku 4.5 vs DeepSeek V4

Anthropic's speed / budget tier against DeepSeek's open-weight flagship (v4-pro · v4-flash) — published pricing, context windows and specs, side by side.

At a glance: Claude Haiku 4.5 lists at $1 / $5 per 1M tokens with a 200,000 tokens context window; DeepSeek V4 lists at $1.74 / $3.48 (V4-Pro) · $0.14 / $0.28 (V4-Flash) per 1M with 1,000,000 tokens of context. The full spec table, price table and each model's published benchmarks are below.

Claude Haiku 4.5 vs DeepSeek V4: side-by-side

 Claude Haiku 4.5DeepSeek V4
MakerAnthropicDeepSeek
Released15 October 202524 April 2026
TierSpeed / budget tierOpen-weight flagship (V4-Pro · V4-Flash)
Context window200,000 tokens1,000,000 tokens (both tiers)
Max outputUp to 64,000 tokensNot specified
API price (per 1M)$1 / $5 per 1M tokens$1.74 / $3.48 (V4-Pro) · $0.14 / $0.28 (V4-Flash) per 1M
AccessProprietary — Claude API & claude.aiOpen weights — MIT licence, on Hugging Face & ModelScope (V4-Pro 1.6T params / 49B active; V4-Flash 284B / 13B active)
Best atHigh-volume, latency-sensitive, cost-sensitive tasks; subagentsCoding, competitive programming, low-cost agentic work
StandoutSonnet 4-level coding at one-third the cost and 2x+ the speed; extended thinking (a Haiku first)Largest open-weights model of 2026 — MIT-licensed 1.6T-param MoE

Price comparison

ModelInput (per 1M)Output (per 1M)
Claude Haiku 4.5$1.00$5.00
DeepSeek V4-Flash$0.14$0.28
DeepSeek V4-Pro$1.74$3.48

Estimate your monthly API cost for Claude Haiku 4.5 vs DeepSeek V4 with the LLM API pricing calculator →

Published benchmark figures

Each figure below is the model's own published score as listed on its AI Model Hub page. Different suites (and suite versions) are not directly comparable.

ModelBenchmarkPublished score
DeepSeek V4SWE-bench Verified80.6%
DeepSeek V4Codeforces rating3,206

What the table says

Key takeaway

Everything above is drawn from the two models' published rate cards and spec sheets. Which one fits depends on the workload you price it against — run your own token volumes through the pricing calculator to see the monthly difference.

Full Claude Haiku 4.5 overview   Full DeepSeek V4 overview

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Frequently asked questions

Which is cheaper, Claude Haiku 4.5 or DeepSeek V4?

On the published rate cards the two are priced identically on the axes compared here; check each model page for tier details.

Which has the bigger context window, Claude Haiku 4.5 or DeepSeek V4?

DeepSeek V4 — 1,000,000 tokens (both tiers), versus 200,000 tokens for Claude Haiku 4.5.

Which model is newer?

DeepSeek V4 is the more recent release (24 April 2026); Claude Haiku 4.5 was released 15 October 2025.

Can I run Claude Haiku 4.5 or DeepSeek V4 locally?

Only DeepSeek V4 — it publishes open weights under the MIT licence. Claude Haiku 4.5 is proprietary and only available via hosted APIs and apps.

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