Claude Opus 4.8 vs DeepSeek V4 Pro

Name: Claude Opus 4.8
Author: Anthropic

Claude Opus 4.8 (2026) and DeepSeek V4 Pro (2026) are frontier-tier reasoning models from Anthropic and DeepSeek. Claude Opus 4.8 ships a 1m-token context window, while DeepSeek V4 Pro ships a 1m-token context window. On SWE-bench Verified, Claude Opus 4.8 leads by 8 pts. On pricing, DeepSeek V4 Pro costs $0.43/1M input tokens versus $5/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

DeepSeek V4 Pro is ~1049% cheaper at $0.43/1M; pay for Claude Opus 4.8 only for coding workflow support.

Decision scorecard

Local evidence first

Signal	Claude Opus 4.8	DeepSeek V4 Pro	How to read it
Best for	reasoning-heavy apps, multimodal apps, and tool-calling agents	reasoning-heavy apps, tool-calling agents, and long-context analysis	Use-case synthesis from product type, capability flags, context, and provider data.
Decision fit	Coding, RAG, and Agents	Coding, RAG, and Agents	Primary workload tags from local decision data.
Context window	1m	1m	Higher is better when prompts, retrieval chunks, or transcripts are large.
Cheapest output	$25/1M tokens	$0.87/1M tokens	Cheapest tracked provider route; verify your exact region and tier.
Provider routes	6 tracked	5 tracked	Broader coverage can reduce vendor lock-in and fallback risk.
Shared benchmarks	SWE-bench Verified leader	6 shared	Visible benchmark lead is 8 points on SWE-bench Verified.

Decision tradeoffs

Choose Claude Opus 4.8 when...

Claude Opus 4.8 holds a shared-benchmark lead on SWE-bench Verified, ahead by 8 points.
Claude Opus 4.8 has broader tracked provider coverage for fallback and route flexibility.
Claude Opus 4.8 uniquely exposes Vision, Multimodal, and Code execution in local model data.
Local decision data tags Claude Opus 4.8 for Coding, RAG, and Agents.

Choose DeepSeek V4 Pro when...

DeepSeek V4 Pro holds a shared-benchmark lead on LiveCodeBench, ahead by 4.7 points.
DeepSeek V4 Pro has the lower cheapest tracked output price at $0.87/1M tokens.
Local decision data tags DeepSeek V4 Pro for Coding, RAG, and Agents.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output route or tier on this page.

Lower estimate DeepSeek V4 Pro

Requests / monthInput tokens / requestOutput tokens / request

Claude Opus 4.8

$10,250

Cheapest tracked route/tier: Anthropic

DeepSeek V4 Pro

$566

Cheapest tracked route/tier: DeepSeek Platform

Estimated monthly gap: $9,685. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

Claude Opus 4.8 -> DeepSeek V4 Pro

Provider overlap exists on OpenRouter and Vercel AI Gateway; start route-level A/B tests there.
DeepSeek V4 Pro is $24.13/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
Check replacement coverage for Vision, Multimodal, and Code execution before moving production traffic.

DeepSeek V4 Pro -> Claude Opus 4.8

Provider overlap exists on OpenRouter and Vercel AI Gateway; start route-level A/B tests there.
Claude Opus 4.8 is $24.13/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
Claude Opus 4.8 adds Vision, Multimodal, and Code execution in local capability data.

Specs

Specification	Claude Opus 4.8 Anthropic	DeepSeek V4 Pro DeepSeek
Released	2026-05-28	2026-04-24
Context window	1m	1m
Parameters	—	1.6T
Architecture	Decoder Only	Mixture of Experts
License	Proprietary	MITOSI-approved
Openness	Proprietary	Open source
Weights	Not released	Available
Code	Not released	Unknown
Commercial use	Commercial use: conditional	Commercial use: permitted
Knowledge cutoff	2026-01	-

Pricing and availability

Pricing attribute	Claude Opus 4.8	DeepSeek V4 Pro
Input price	$5/1M tokens	$0.43/1M tokens
Output price	$25/1M tokens	$0.87/1M tokens
Providers	Anthropic AWS Bedrock GCP Vertex AI Microsoft Foundry OpenRouter Vercel AI Gateway	DeepSeek Platform Fireworks AI OpenRouter Vercel AI Gateway Novita AI

Capabilities

Capability	Claude Opus 4.8	DeepSeek V4 Pro
Vision	Yes	No
Multimodal	Yes	No
Reasoning	Yes	Yes
JSON / Tool use	Yes	Yes
Structured outputs	Yes	Yes
Code execution	Yes	No
IDE integration	No	No
Computer use	Yes	No
Parallel agents	Yes	No

Benchmarks

Benchmark	Claude Opus 4.8	DeepSeek V4 Pro
SWE-bench Verified	88.6	80.6
SWE-bench Pro	69.2	55.4
Google-Proof Q&A	93.6	90.1
LiveCodeBench	88.8	93.5
GeneBench-Pro	16.0	2.4
MCP-Atlas	82.2	69.4

Continue comparing

Model pages

Labs and families

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Last reviewed: 2026-07-26. Data sourced from public model cards and provider documentation.

Both models

Claude Opus 4.8 DeepSeek V4 Pro