Which is cheaper, DeepSeek R2 or GPT-5?

DeepSeek R2 is cheaper at the input + output rate combined: $2.75 versus $11.25 per million tokens.

Which has higher quality, DeepSeek R2 or GPT-5?

GPT-5 has the higher AA Intelligence Index score: 91 versus 86.

Can I switch between DeepSeek R2 and GPT-5 via one API?

Both DeepSeek R2 and GPT-5 are accessible through OpenRouter's unified gateway, which lets you switch models with one API key. Phase 2 of AIpricly will add scenario-routed automatic primary + fallback chains.

DeepSeek R2 vs GPT-5

Side-by-side pricing, capabilities, real-world cost across common scenarios, and our editorial pick.

添加模型最多可对比 4 个模型

全部价格按美元 / 百万 token 计

DeepSeek R2

DeepSeek · released 2026-02-15

Quality (AA Index)86

Input price$0.55

Output price$2.20

Context128K

Throughput110 tok/s

P50 latency1.2s

View full pricing

OVERALL WINNER

GPT-5

OpenAI · released 2026-01-15

Quality (AA Index)91

Input price$1.25

Output price$10.00

Context400K

Throughput120 tok/s

P50 latency0.7s

View full pricing

通过 OpenRouter 试用 DeepSeek R2 通过 OpenRouter 试用 GPT-5

链接通过我们的 OpenRouter 推荐链接在新标签页打开。查看推广披露

规格对比

绿色列 = 该指标获胜方

Metric	DeepSeek R2	GPT-5	Verdict
Input price /百万 tokens	$0.55	$1.25	DeepSeek R2 −56%
Output price /百万 tokens	$2.20	$10.00	DeepSeek R2 −78%
Context window max input length	128K	400K	GPT-5 +3.1×
AA Quality AA Intelligence Index (0–100)	86	91	GPT-5 +5pt
Arena Elo LMArena human-pref Elo (800–2000)	—	—	Tied
Throughput tokens per second	110	120	GPT-5 +9%
P50 latency first token	1.2s	0.7s	GPT-5 −42%
Vision multimodal	—
Function calling tool use			Tied
Reasoning mode chain-of-thought			Tied

常见场景月度费用

默认用量假设

Scenario	DeepSeek R2	GPT-5
customer support 1000K req · 600/180 tok	$726	$2.5K
chat with docs 300K req · 4000/300 tok	$858	$2.4K
code generation 500K req · 2000/500 tok	$1.1K	$3.8K
voice assistant 600K req · 800/200 tok	$528	$1.8K

Our pick

For most workloads, choose GPT-5.

3.1× the context window — better for long documents and agents
9% faster throughput — matters for streaming UX and voice agents

Best across-the-board quality but the most expensive token rate in the table; pick GPT-5 when reasoning depth or function-calling reliability outranks per-million-token spend.

Choose DeepSeek R2 instead if: 尚未记录这对模型的具体取舍。两者质量差距可能很小，最终决定因素更多是工作负载契合度、集成成本与团队熟悉度。

阅读完整深度分析

为何选择？通过智能路由同时使用两者

第二阶段 · 带故障转移链的网关

Set GPT-5 as primary, DeepSeek R2 as fallback. One key, one bill, automatic failover when GPT-5 errors.

第二阶段预览 · 网关尚未上线该接口目前不存在。网关计划在第二阶段上线——下面只是规划中的接口形态预览，不是可用的 API。上线时会通过 newsletter 通知订阅者。

查看计划中的 API 调用形态

$ curl https://api.aipricly.com/v1/chat/completions \
  -H "Authorization: Bearer $AIPC_KEY" \
  -d '{
    "routing": {
      "primary": "openai/gpt-5",
      "fallback": ["deepseek/deepseek-r2"]
    },
    "messages": [{"role": "user", "content": "..."}]
  }'