Claude Opus 4.8 vs DeepSeek V3.2

Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.

Claude Opus 4.8

Anthropic · May 2026

Anthropic's flagship Opus with adaptive thinking, effort controls and a 1M context — 88.6% on SWE-bench Verified at $5/$25.

DeepSeek V3.2

DeepSeek · Sep 2025

68.4

The sparse-attention release that halved DeepSeek's already-lowest-in-class prices while keeping GPT-class quality.

The verdict

Claude Opus 4.8 wins 2 of the 2 benchmarks these models share, against 0 for DeepSeek V3.2. On price the gap is dramatic: DeepSeek V3.2 works out roughly 32x cheaper per blended million tokens. Claude Opus 4.8 also takes 1M of context versus 128K for DeepSeek V3.2. And DeepSeek V3.2 is open-weights (MIT), so it can be self-hosted — a structural advantage if data control or vendor independence matters.

Benchmark head-to-head 20

SWE-bench Verified
88.6%67.8%
Claude Opus 4.8DeepSeek V3.2
GPQA Diamond
~91%79.9%
Claude Opus 4.8DeepSeek V3.2

Specs & pricing

Claude Opus 4.8DeepSeek V3.2
modhub Index68.4
Input price / 1M$5$0.28
Output price / 1M$25$0.42
Context window1M128K
Max output64K64K
Open weightsnoyes (MIT)
Reasoning modelyesyes
Multimodal inputtext, imagetext
Knowledge cutoffMar 2026Jul 2025
ReleasedMay 2026Sep 2025
Example monthly cost*$87.50$3.43

* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.

Frequently asked questions

Which is better, Claude Opus 4.8 or DeepSeek V3.2?
Claude Opus 4.8 wins 2 of the 2 benchmarks these models share, against 0 for DeepSeek V3.2. On price the gap is dramatic: DeepSeek V3.2 works out roughly 32x cheaper per blended million tokens. Claude Opus 4.8 also takes 1M of context versus 128K for DeepSeek V3.2. And DeepSeek V3.2 is open-weights (MIT), so it can be self-hosted — a structural advantage if data control or vendor independence matters.
Which is cheaper, Claude Opus 4.8 or DeepSeek V3.2?
Claude Opus 4.8 costs $5/$25 per million input/output tokens, while DeepSeek V3.2 costs $0.28/$0.42. For a typical workload of 10M input and 1.5M output tokens per month, that's $87.50 versus $3.43.
Which model is better for coding, Claude Opus 4.8 or DeepSeek V3.2?
On SWE-bench Verified — the standard agentic-coding benchmark — Claude Opus 4.8 scores 88.6% versus 67.8% for DeepSeek V3.2, making Claude Opus 4.8 the stronger pick for coding agents.

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