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Gemini 3.1 Pro

Googleflagship

Tied at the top of the LMArena text leaderboard May 2026 @ ~1505 Elo. GPQA Diamond 94.3%, MMLU-Pro 91.0%: current scientific reasoning leader. 1M token context; fastest frontier model at ~131 tok/s.

Context Window

1M

tokens

Max Output

66K

tokens

Input Price

$2

per 1M tokens

Output Price

$12

per 1M tokens

Speed

131

tokens/sec

Released

Apr 2026

2026-04-09

Blended Cost

$7.00

per 1M tokens

Value Score

13.7

quality per $

Capabilities

ChatVisionFunction CallingCode GenerationReasoningAudio

Benchmarks

Quality Index
96
MMLU Pro
91
HumanEval (Coding)
93.2
MATH
92.4
Arena ELO
1505

Price vs Quality

6080100$1.00$10.00$100.00Blended cost per 1M tokens (log scale) →GPT-4o — $6.25/1M, quality 85GPT-4o Mini — $0.375/1M, quality 72o3 Mini — $2.75/1M, quality 88o3 — $5.00/1M, quality 94GPT-4.1 — $5.00/1M, quality 89Claude Opus 4 — $45.00/1M, quality 91Claude Sonnet 4 — $9.00/1M, quality 88Claude 3.5 Haiku — $2.40/1M, quality 75Gemini 2.5 Pro — $5.63/1M, quality 92Gemini 2.0 Flash — $0.250/1M, quality 74Llama 4 Maverick — $0.400/1M, quality 80Llama 4 Scout — $0.275/1M, quality 71Mistral Large 2 — $4.00/1M, quality 79Codestral — $0.600/1M, quality 76DeepSeek V3 — $0.685/1M, quality 86DeepSeek R1 — $1.37/1M, quality 91Grok 3 — $9.00/1M, quality 87Grok 3 Mini — $0.400/1M, quality 78Command R+ — $6.25/1M, quality 68Amazon Nova Pro — $2.00/1M, quality 70Qwen 2.5 72B — $0.600/1M, quality 80Qwen 2.5 Coder 32B — $0.300/1M, quality 74Sonar Pro — $9.00/1M, quality 78GPT-5.5 — $17.50/1M, quality 97GPT-5.5 Pro — $105.00/1M, quality 96Claude Opus 4.7 — $15.00/1M, quality 96DeepSeek V4 Pro — $1.32/1M, quality 89DeepSeek V4 Flash — $0.210/1M, quality 84Qwen 3.6 Plus — $3.50/1M, quality 86Grok 4.3 — $1.88/1M, quality 93Kimi K2.6 — $2.11/1M, quality 92Kimi K3 — $9.00/1M, quality 97Claude Sonnet 4.6 — $9.00/1M, quality 90GLM-5.1 — $2.03/1M, quality 88Claude Opus 4.8 — $15.00/1M, quality 98Qwen 3.7 Max — $5.00/1M, quality 94Claude Fable 5 — $30.00/1M, quality 100MiniMax M3 — $1.50/1M, quality 89GPT-5.6 Sol — $17.50/1M, quality 98GPT-5.6 Terra — $7.00/1M, quality 93GPT-5.6 Luna — $0.700/1M, quality 83Gemini 3.6 Flash — $2.25/1M, quality 90Gemini 3.5 Flash-Lite — $1.40/1M, quality 79Claude Sonnet 5 — $9.00/1M, quality 93GLM-5.2 — $2.90/1M, quality 91Claude Opus 5 — $15.00/1M, quality 99Claude Mythos 5 — $30.00/1M, quality 100Grok 4.5 — $4.00/1M, quality 94Qwen3.8 Max — $4.00/1M, quality 96Gemini 3.1 Pro — $7.00/1M, quality 96Gemini 3.1 Pro
Cheaper is left, more capable is up. 1 of 49 priced models are both cheaper and score at least as high. Self-host models are left off the price axis — their cost depends on the hardware you run them on, not on tokens.

Context Window in Context

  • ▸ Gemini 3.1 Pro1M
  • GPT-4.11M
  • Gemini 2.5 Pro1M
  • Gemini 2.0 Flash1M
  • Llama 4 Maverick1M
  • GPT-5.51M
  • GPT-5.5 Pro1M
  • Claude Opus 4.71M
Bar length is logarithmic — each full step is 10× the tokens. Shown against the models with the nearest context windows, not the directory extremes.
Try in Playground Use via Swfte ConnectGoogle Docs

尚未接入我们的网关

Swfte Connect 尚未持有 Gemini 3.1 Pro 的密钥，因此这里没有可运行的内容。添加你自己的提供商密钥，就能用与本目录中其他模型相同的 API 调用它。

请求
curl https://api.swfte.com/agents/v2/gateway/chat/completions \
  -H "Authorization: Bearer $SWFTE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "google:gemini-3.1-pro-preview",
    "messages": [{"role": "user", "content": "Hello"}]
  }'
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About Gemini 3.1 Pro

Gemini 3.1 Pro is a flagship AI model by Google, released on April 9, 2026. It supports a context window of 1000K tokens and can generate up to 66K output tokens.

At $2 per million input tokens and $12 per million output tokens, its blended cost of $7.00/1M tokens places it in the premium pricing tier. Its value score of 13.7 reflects the balance of quality and cost.

Using Gemini 3.1 Pro with Swfte

Access Gemini 3.1 Pro through Swfte Connect, our unified LLM gateway. Connect gives you a single API for 50+ models, with automatic routing, cost optimization, and fallback handling. You can also try Gemini 3.1 Pro in our AI Playground before integrating.

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