Best AI model for writing & language

Literature, language and professional writing. Ranked by Arena text / industry_writing_and_literature_and_language, priced against live API rates. 45 models have a published score on this board.

Capability published 2026-10-22 · pricing retrieved 2026-10-25

Most capable
Claude Opus 5.5
Anthropic
$8.00 / 1M blended
100% of leader strength
anthropic/claude-opus-5.5
Best value
Gemini 4 Argon
Google
$4.00 / 1M blended
98% of leader strength · 50% cheaper
google/gemini-4-argon
Budget
DeepSeek V4 Flash 0731
DeepSeek
$0.07 / 1M blended
66% of leader strength · 99% cheaper
deepseek/deepseek-v4-flash-0731
Best for agents
Gemini 4 Argon
Google
$4.00 / 1M blended
98% of leader strength · 50% cheaper
google/gemini-4-argon

Top 25 models for writing & language

Rows marked frontier are Pareto-optimal — nothing we track is both stronger and cheaper. "Strength" rescales the board so 100% = parity with the leader.

#ModelProviderScoreStrength$/1MContextTools
1 Claude Opus 5.5
anthropic/claude-opus-5.5
Anthropic 1532 100% $8.001M tools
2 Gemini 4 Argon
google/gemini-4-argon
Google 1524 98% $4.001.048576M tools
3 Claude Fable 5.1
anthropic/claude-fable-5.1
Anthropic 1512 94% $20.001M tools
4 Claude Fable 5
anthropic/claude-fable-5
Anthropic 1501 91% $20.001M tools
5 Claude Opus 5
anthropic/claude-opus-5
Anthropic 1499 91% $10.001M tools
6 Gemini 3.8 Flash
google/gemini-3.8-flash
Google 1494 89% $1.661.048576M tools
7 Gemini 3.7 Flash
google/gemini-3.7-flash
Google 1491 88% $1.501.048576M tools
8 Qwen3.8 Max (0902)
qwen/qwen3.8-max-0902
Qwen (Alibaba) 1477 84% $3.001M tools
9 Claude Sonnet 5.5
anthropic/claude-sonnet-5.5
Anthropic 1476 84% $4.001M tools
10 Kimi K3
moonshotai/kimi-k3
Moonshot AI 1470 82% $2.881.048576M tools
11 Gemini 3.6 Flash
google/gemini-3.6-flash
Google 1470 82% $1.501.048576M tools
12 GLM 5.3
z-ai/glm-5.3
Z.ai (Zhipu) 1469 82% $0.411.048576M tools
13 GLM 5.2
z-ai/glm-5.2
Z.ai (Zhipu) 1463 80% $1.771.048576M tools
14 Claude Opus 4.8
anthropic/claude-opus-4.8
Anthropic 1461 80% $10.001M tools
15 GLM 5.3 Flash
z-ai/glm-5.3-flash
Z.ai (Zhipu) 1455 78% $0.241.048576M tools
16 GLM 5.1
z-ai/glm-5.1
Z.ai (Zhipu) 1455 78% $2.15205K tools
17 DeepSeek V4.1 Flash
deepseek/deepseek-v4.1-flash
DeepSeek 1451 77% $0.271.048576M tools
18 DeepSeek V4 Pro 0813
deepseek/deepseek-v4-pro-0813
DeepSeek 1447 76% $0.991.048576M tools
19 DeepSeek V4 Pro 0423
deepseek/deepseek-v4-pro
DeepSeek 1447 76% $0.261.048576M tools
20 Grok 4.5
x-ai/grok-4.5
xAI 1445 75% $3.00500K tools
21 GPT-6.1 Sol
openai/gpt-6.1-sol
OpenAI 1442 75% $4.001.05M tools
22 GPT-6 Astra
openai/gpt-6-astra
OpenAI 1440 74% $20.001.05M tools
23 Kimi K2.6
moonshotai/kimi-k2.6
Moonshot AI 1439 74% $1.34262K tools
24 Qwen3.7 Plus
qwen/qwen3.7-plus
Qwen (Alibaba) 1438 73% $0.561M tools
25 Claude Sonnet 5
anthropic/claude-sonnet-5
Anthropic 1436 73% $4.001M tools

Capability: Arena leaderboard dataset (CC-BY-4.0), Arena text / industry_writing_and_literature_and_language, published 2026-10-22. Pricing: OpenRouter, retrieved 2026-10-25. (input x 3 + output x 1) / 4.

What this measures: Human pairwise preference votes. Measures perceived answer quality on this category, not correctness on a fixed test set. For each model this is the probability it beats the board leader in a head-to-head human vote — 0.50 means a dead tie and is the best possible value.

Get this as JSON

curl -s https://agentleaderboards.com/api/v1/route/writing.json | jq .picks

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