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Migrating from gemini-3-pro-preview to gemini-3.1-pro-preview

What changes when you move from gemini-3-pro-preview to gemini-3.1-pro-preview: prices, limits, features and parameters, read from each company's own pages.

Status
Retired
Shutdown
Mar 9, 2026 at the earliest
Time left
—
Status
Active
Shutdown
none announced
Time left
—

Prices

USD per 1M tokens, standard tier
Typegemini-3-pro-previewgemini-3.1-pro-previewChange
InputNot published$2.00first seen October 1, 2026 · source—
Cached inputNot published$0.20first seen October 1, 2026 · source—
OutputNot published$12.00first seen October 1, 2026 · source—

Other tiers, prompt-size bands and modalities are on each model's page.

Limits

Tokens
Limitgemini-3-pro-previewgemini-3.1-pro-previewChange
Context window1,048,576 tokensin place when tracking began (October 6, 2026) · source1,048,576 tokensin place when tracking began (October 6, 2026) · source0%
Max output tokens65,536 tokensin place when tracking began (October 6, 2026) · source65,536 tokensin place when tracking began (October 6, 2026) · source0%

Benchmarks

Same benchmark and source on both sides; settings named where they differ
Benchmarkgemini-3-pro-previewgemini-3.1-pro-previewChange
Arena TextArena.1485 ±41487 ±3+2
within range
Arena Text: CodingArena.1517 ±71521 ±5+4
within range
Arena WebDevArena.1440 ±81447 ±5+7
within range
Arena VisionArena.1289 ±71280 ±5−9
within range
Arena SearchArena.1201 ±51207 ±5+6
within range
Arena DocumentArena.1451 ±91459 ±5+8
within range
GPQA DiamondEpoch AI, high effort (vs no setting).
Other settings
  • 92.6% → 94.1%
92.6%94.4%+1.8 pts
OTIS Mock AIME 2024-2025Epoch AI, high effort (vs no setting).
Other settings
  • 91.4% → 95.6%
91.4%95.6%+4.2 pts

A score from one source is never compared with another source's, and company-reported scores are compared only within the same company; settings named where they differ. Data: Arena (arena.ai), CC BY 4.0; Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.

Features and parameters

Compare models

Same on both

  • Structured outputs: supported on both.gemini-3-pro-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-pro-preview: in place when tracking began (October 6, 2026) · source
  • Function calling: supported on both.gemini-3-pro-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-pro-preview: in place when tracking began (October 6, 2026) · source
  • Prompt caching: supported on both.gemini-3-pro-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-pro-preview: in place when tracking began (October 6, 2026) · source
  • Batch API: supported on both.gemini-3-pro-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-pro-preview: in place when tracking began (October 6, 2026) · source
  • Image input: supported on both.gemini-3-pro-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-pro-preview: in place when tracking began (October 6, 2026) · source
  • PDF input: supported on both.gemini-3-pro-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-pro-preview: in place when tracking began (October 6, 2026) · source
  • Reasoning / thinking: supported on both.gemini-3-pro-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-pro-preview: in place when tracking began (October 6, 2026) · source
  • Built-in web search: supported on both.gemini-3-pro-preview: in place when tracking began (October 6, 2026) · source · gemini-3.1-pro-preview: in place when tracking began (October 6, 2026) · source

Not published for gemini-3-pro-preview: Fine-tuning, temperature parameter, top_p parameter, logprobs.

Not published for gemini-3.1-pro-preview: Fine-tuning, temperature parameter, top_p parameter, logprobs.

No aliases point at gemini-3-pro-preview.

Aliases pointing at gemini-3.1-pro-preview: gemini-3-pro-preview (since March 9, 2026, per Google · source)

Checklist

  1. Change the model string from gemini-3-pro-preview to gemini-3.1-pro-preview.

Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: gemini-3-pro-preview, gemini-3.1-pro-preview.