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DeepSeek R2 vs Grok 3

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

Add a modelUp to 4 models can be compared
all prices in USD per 1M tokens
OVERALL WINNER

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

Grok 3

xAI · released 2026-02-20

Quality (AA Index)85
Input price$2.50
Output price$12.00
Context128K
Throughput95 tok/s
P50 latency1.4s

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Head-to-head specs

Green column = winner per metric
MetricDeepSeek R2Grok 3Verdict
Input price
/1M tokens
$0.55$2.50DeepSeek R2 −78%
Output price
/1M tokens
$2.20$12.00DeepSeek R2 −82%
Context window
max input length
128K128KTied
AA Quality
AA Intelligence Index (0–100)
8685DeepSeek R2 +1pt
Arena Elo
LMArena human-pref Elo (800–2000)
Tied
Throughput
tokens per second
11095DeepSeek R2 +16%
P50 latency
first token
1.2s1.4sDeepSeek R2 −14%
Vision
multimodal
Function calling
tool use
Tied
Reasoning mode
chain-of-thought
Tied

Monthly cost across common scenarios

Default usage assumptions
ScenarioDeepSeek R2Grok 3
customer support
1000K req · 600/180 tok
$726$3.7K
chat with docs
300K req · 4000/300 tok
$858$4.1K
code generation
500K req · 2000/500 tok
$1.1K$5.5K
voice assistant
600K req · 800/200 tok
$528$2.6K
Our pick

For most workloads, choose DeepSeek R2.

  • 78% cheaper input price, which compounds at scale
  • 16% faster throughput — matters for streaming UX and voice agents
Choose Grok 3 instead if: Tradeoffs for this pair have not yet been documented. The quality difference may be small enough that workload fit, integration cost, and team familiarity decide the choice.

Why pick? Use both with smart routing

Phase 2 · gateway with fallback chain

Set DeepSeek R2 as primary, Grok 3 as fallback. One key, one bill, automatic failover when DeepSeek R2 errors.

PHASE 2 PREVIEW · gateway not live yetThis endpoint does not exist yet. The gateway is in Phase 2 — what you see below is a design preview of the planned interface, not a live API. We will email subscribers when it launches.
Preview the planned API call
$ curl https://api.aipricly.com/v1/chat/completions \
  -H "Authorization: Bearer $AIPC_KEY" \
  -d '{
    "routing": {
      "primary": "deepseek/deepseek-r2",
      "fallback": ["xai/grok-3"]
    },
    "messages": [{"role": "user", "content": "..."}]
  }'

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