Model components / Fine-tuned / chat models

Gemini Pro

Google DeepMind's flagship Gemini reasoning tier, natively multimodal with a 1M+ token context window and a thinking mode. The higher-capability counterpart to Gemini Flash. Tracked as a tier rather than a point release, with the measured release named in the score note. Generations to date are Gemini 2.5 Pro (2025), Gemini 3 Pro (Nov 2025) and Gemini 3.1 Pro (2026, in preview at the time of scoring). Closed weights, available through the Gemini API, AI Studio, Vertex AI and the Gemini apps.

Tier product. Scored against Gemini 3 Pro, the generally available Pro release. Gemini 3.1 Pro Preview leads LiveCodeBench Pro and posts 80.6% on SWE-bench Verified, but preview checkpoints are excluded from the map as separate products because they are not stable; it is noted here so the tier's coding standing is not lost. Supersedes the separate gemini-2-5-pro, gemini-3-pro and gemini-3-1-pro-preview entries.

Openness

1 high confidence

1.0

weights: closed
data: closed
code: closed
license: Proprietary(API-only)

Closed by construction and stable across generations. Google's own model index files Gemini under API and app access while placing Gemma separately under "Open models", so the line is drawn by the vendor rather than inferred. Measured against Gemini 3 Pro, the GA Pro release at the time of scoring.

https://deepmind.google/models/gemini/ recorded 2026-07-29
Google's model index lists Gemini under API and app access and files Gemma separately under a heading of "Open models", with no weight download for Gemini

Adoption

5 medium confidence

5.0

Distributed through the Gemini API, AI Studio, Vertex AI and the Gemini apps, whose combined reach is far above the >10M band floor. Attributed to the surfaces the Pro tier powers rather than a standalone per-model count, so directional.

https://deepmind.google/models/gemini/ recorded 2026-07-29
Pro tier offered across the Gemini API, AI Studio, Vertex AI and consumer Gemini apps

Capability

5 medium confidence

5.0

Frontier tier. Gemini 3 Pro is competitive at the top of LMArena, GPQA-Diamond and HLE, and the 3.1 Pro preview leads LiveCodeBench Pro with 80.6% on SWE-bench Verified. Confidence medium because the strongest coding figures come from a preview checkpoint that is deliberately not tracked as a product.

https://deepmind.google/models/gemini/ recorded 2026-07-29
Pro presented as the flagship reasoning tier of the Gemini family

Unchanged since 2026-07-29 (last edited, not re-checked)