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Google: Gemini 3.1 Pro Preview (batch)

google/gemini-3.1-pro-preview:batch

audio text image videoContext 1.0MBatch

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...

Price

Input$1

per 1M tokens

Output$6

per 1M tokens

Compare this model

Providers

Each row is one seller. Prices are the published rate from that source. A dash means that source did not publish the amount. Sorted by a 3:1 blend of input and output.

No provider prices yet.

Monthly bill

Token models use the token counts. Image, video, and audio models use units times the flat rate.

$7.00 at list price for this workload

Tiers

Web search
$0.014 per request
Image input
$1 per 1M tokens
Audio
$1 per 1M tokens
Reasoning
$6 per 1M tokens
Above 200,000 prompt tokens
in $2 · out $9 · audio $2
Every rate
UnitInputOutputFlatConfidence
token $1/1M $6/1M Not published— official

Price history

Google: Gemini 3.1 Pro Preview (batch)
6.5 0 2026-09-15: $12026-09-16: $12026-09-17: $12026-09-18: $12026-09-19: $12026-09-20: $12026-09-21: $12026-09-22: $12026-09-23: $12026-09-24: $12026-09-25: $12026-09-26: $12026-09-27: $12026-09-28: $12026-09-29: $12026-09-30: $12026-10-01: $12026-10-02: $12026-10-03: $12026-10-04: $12026-10-05: $12026-10-06: $12026-10-07: $12026-10-08: $12026-10-09: $12026-10-10: $12026-10-11: $12026-10-12: $12026-10-13: $12026-10-14: $12026-10-15: $12026-10-16: $12026-10-17: $12026-10-18: $12026-10-19: $12026-10-20: $12026-10-21: $12026-10-22: $12026-10-23: $12026-10-24: $12026-10-25: $12026-10-26: $12026-10-27: $12026-10-28: $12026-10-29: $12026-10-30: $1 2026-09-15 2026-10-30

input or flat output

Daily snapshots
UTC dateUnitInputOutputFlat
2026-09-15 token $1 $6 Not published—
2026-09-16 token $1 $6 Not published—
2026-09-17 token $1 $6 Not published—
2026-09-18 token $1 $6 Not published—
2026-09-19 token $1 $6 Not published—
2026-09-20 token $1 $6 Not published—
2026-09-21 token $1 $6 Not published—
2026-09-22 token $1 $6 Not published—
2026-09-23 token $1 $6 Not published—
2026-09-24 token $1 $6 Not published—
2026-09-25 token $1 $6 Not published—
2026-09-26 token $1 $6 Not published—
2026-09-27 token $1 $6 Not published—
2026-09-28 token $1 $6 Not published—
2026-09-29 token $1 $6 Not published—
2026-09-30 token $1 $6 Not published—
2026-10-01 token $1 $6 Not published—
2026-10-02 token $1 $6 Not published—
2026-10-03 token $1 $6 Not published—
2026-10-04 token $1 $6 Not published—
2026-10-05 token $1 $6 Not published—
2026-10-06 token $1 $6 Not published—
2026-10-07 token $1 $6 Not published—
2026-10-08 token $1 $6 Not published—
2026-10-09 token $1 $6 Not published—
2026-10-10 token $1 $6 Not published—
2026-10-11 token $1 $6 Not published—
2026-10-12 token $1 $6 Not published—
2026-10-13 token $1 $6 Not published—
2026-10-14 token $1 $6 Not published—
2026-10-15 token $1 $6 Not published—
2026-10-16 token $1 $6 Not published—
2026-10-17 token $1 $6 Not published—
2026-10-18 token $1 $6 Not published—
2026-10-19 token $1 $6 Not published—
2026-10-20 token $1 $6 Not published—
2026-10-21 token $1 $6 Not published—
2026-10-22 token $1 $6 Not published—
2026-10-23 token $1 $6 Not published—
2026-10-24 token $1 $6 Not published—
2026-10-25 token $1 $6 Not published—
2026-10-26 token $1 $6 Not published—
2026-10-27 token $1 $6 Not published—
2026-10-28 token $1 $6 Not published—
2026-10-29 token $1 $6 Not published—
2026-10-30 token $1 $6 Not published—

Alternatives

Parameters (12)
include_reasoningmax_tokensreasoningreasoning_effortresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_p
Call this model

OpenRouter id google/gemini-3.1-pro-preview:batch. InferenceList does not send the request.

curl
curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"google/gemini-3.1-pro-preview:batch","messages":[{"role":"user","content":"Hello"}]}'

JavaScript
await fetch("https://openrouter.ai/api/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: "Bearer " + process.env.OPENROUTER_API_KEY,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    model: "google/gemini-3.1-pro-preview:batch",
    messages: [{ role: "user", content: "Hello" }],
  }),
});

Python
import os, json, urllib.request
req = urllib.request.Request(
    "https://openrouter.ai/api/v1/chat/completions",
    data=json.dumps({"model": "google/gemini-3.1-pro-preview:batch", "messages": [{"role": "user", "content": "Hello"}]}).encode(),
    headers={"Authorization": "Bearer " + os.environ["OPENROUTER_API_KEY"], "Content-Type": "application/json"},
)
print(urllib.request.urlopen(req).read().decode())

JSON · History JSON