#tHow Many Tokens?

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Cheapest AI model for translating documents

Translation has an unusual cost profile: output volume roughly equals input volume, so output pricing matters as much as input. We ranked every model at 1,000 input + 1,000 output, the cleanest 1:1 benchmark.

Llama 3.1 8B is the cheapest model for this workload at $360 per 1M calls (Meta). GPT-5 Nano is second at $450.

Ranked cheapest first

#ModelInput $/MOutput $/MPer 1M calls
#1 Llama 3.1 8B
Meta
$0.18 $0.18 $360
#2 GPT-5 Nano
OpenAI
$0.05 $0.40 $450
#3 GPT-4.1 Nano
OpenAI
$0.10 $0.40 $500
#4 Gemini 2.5 Flash-Lite
Google
$0.10 $0.40 $500
#5 GPT-4o mini
OpenAI
$0.15 $0.60 $750
#6 DeepSeek V3
DeepSeek
$0.27 $1.10 $1,370
#7 Llama 3.1 70B
Meta
$0.59 $0.79 $1,380
#8 GPT-5.4 Nano
OpenAI
$0.20 $1.25 $1,450
#9 Qwen 2.5 Coder 32B
Alibaba
$0.80 $0.80 $1,600
#10 Gemini 3.1 Flash-Lite
Google
$0.25 $1.50 $1,750
#11 Llama 3.3 70B
Meta
$0.88 $0.88 $1,760
#12 Qwen 2.5 72B
Alibaba
$0.90 $0.90 $1,800
#13 GPT-4.1 Mini
OpenAI
$0.40 $1.60 $2,000
#14 GPT-5 Mini
OpenAI
$0.25 $2.00 $2,250
#15 DeepSeek V3.1
DeepSeek
$0.60 $1.70 $2,300
#16 Gemini 2.5 Flash
Google
$0.30 $2.50 $2,800
#17 Gemini 3 Flash
Google
$0.50 $3.00 $3,500
#18 Qwen3 Coder 480B
Alibaba
$2.00 $2.00 $4,000
#19 GPT-5.4 Mini
OpenAI
$0.75 $4.50 $5,250
#20 o3-mini
OpenAI
$1.10 $4.40 $5,500
#21 o4-mini
OpenAI
$1.10 $4.40 $5,500
#22 GLM-5.1
zhipu
$1.40 $4.40 $5,800
#23 Claude Haiku 4.5
Anthropic
$1.00 $5.00 $6,000
#24 Llama 3.1 405B
Meta
$3.50 $3.50 $7,000
#25 Mistral Large
Mistral
$2.00 $6.00 $8,000
#26 GPT-4.1
OpenAI
$2.00 $8.00 $10,000
#27 o3
OpenAI
$2.00 $8.00 $10,000
#28 DeepSeek R1
DeepSeek
$3.00 $7.00 $10,000
#29 GPT-5.1
OpenAI
$1.25 $10.00 $11,250
#30 GPT-5
OpenAI
$1.25 $10.00 $11,250
#31 Gemini 2.5 Pro
Google
$1.25 $10.00 $11,250
#32 GPT-4o
OpenAI
$2.50 $10.00 $12,500
#33 Gemini 3.1 Pro
Google
$2.00 $12.00 $14,000
#34 GPT-5.3
OpenAI
$1.75 $14.00 $15,750
#35 GPT-5.2
OpenAI
$1.75 $14.00 $15,750
#36 GPT-5.4
OpenAI
$2.50 $15.00 $17,500
#37 Claude Sonnet 4.6
Anthropic
$3.00 $15.00 $18,000
#38 Claude Opus 4.8
Anthropic
$5.00 $25.00 $30,000
#39 GPT-5.5
OpenAI
$5.00 $30.00 $35,000
#40 GPT-4 Turbo
OpenAI
$10.00 $30.00 $40,000
#41 Claude Opus 4.8 (Fast Mode)
Anthropic
$10.00 $50.00 $60,000
#42 o3-pro
OpenAI
$20.00 $80.00 $100,000
#43 GPT-5 Pro
OpenAI
$15.00 $120.00 $135,000
#44 GPT-5.2 Pro
OpenAI
$21.00 $168.00 $189,000
#45 GPT-5.5 Pro
OpenAI
$30.00 $180.00 $210,000
#46 GPT-5.4 Pro
OpenAI
$30.00 $180.00 $210,000

Workload assumption: 1,000 input tokens + 1,000 output tokens per call, scaled to 1M calls. Pricing as of 2026-05-31.

How to use this ranking

The winner is mathematically cheapest at the listed workload shape — that's not the same as "best for the use case." Cheaper models often have lower reasoning depth, smaller context windows, or worse instruction-following. Use this as the cost baseline, then test the top 2-3 candidates on your real prompts via the live counter.

Pricing snapshots come from each provider's published rate cards and are tracked in the full pricing changelog. Tokenizer accuracy per model is documented in the methodology.

Other ranked use cases

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