Gemini 3 Pro
Gemini 3 Pro is a legacy integration reference; keep it only while you identify a current replacement.
- Family
- Gemini 3
- Released
- 2025-12-11
- Lifecycle
- Retired March 9, 2026
- Context
- 1M
- Architecture
- Decoder Only
- Knowledge cutoff
- 2025-01
- Specialization
- general
- Openness
- Proprietary
- License
- ProprietaryRestricted
- Weights
- Not released
- Code
- Unknown
- Training
- Pretrained
Cheapest of 2 routes · GCP Vertex AI
Cheapest of 2 routes · GCP Vertex AI
About
Google DeepMind's most advanced reasoning Gemini model. Part of the Gemini 3 series with frontier-class intelligence, multimodal understanding, and 1M token context window.
Providers(2)
Compare all 2Compare API pricing across 2 tracked provider routes for input and output tokens, batch, and cached reads when available.
| Provider | Input / 1M | Output / 1M | Route |
|---|---|---|---|
| GCP Vertex AI | $1.25 | $5.00 | Serverless |
| Replicate API | $2.00 | $12.00 | Serverless |
Available via routers & gateways(13)
LiteLLM
GatewayOpen-source Python SDK and proxy server that unifies 100+ LLM APIs behind a single OpenAI-compatible interface, with load balancing, cost tracking, and configurable failover.
OpenRouter
HybridUnified hybrid gateway to 500+ models from 80+ providers via a single OpenAI-compatible API, with an optional Auto Router that selects a model per prompt from market spend data.
Portkey
GatewayProduction AI gateway routing to 1,600+ LLMs with failover, load balancing, caching, and guardrails; MIT-licensed open-source core is self-hostable. Now part of Palo Alto Networks as Prisma AIRS AI Gateway.
AIRouter
RouterCommercial LLM router (branded "AI Router" on its site) that picks the best model per request via a Decision API or an OpenAI-compatible Chat Completions endpoint, with a private selection mode that routes on anonymized patterns; sold as BYOK subscription plans priced by routed tokens.
Helicone
GatewayObservability-first AI gateway with routing, caching, rate limiting, and request tracing; Apache-2.0 open-source platform with a managed hosted tier for logging and analytics.
Kong AI Gateway
GatewayMulti-LLM AI gateway built on Kong Gateway 3.x, adding semantic routing, load balancing, guardrails, and MCP traffic analytics as plugins over Kong's existing API management platform.
Capabilities
Benchmark peer barsfor Coding
Benchmark scores(10)
| Benchmark | Score | Version | Evaluation | Source |
|---|---|---|---|---|
| 42.5 | —Observed 2026-04-15 | — | ||
| 81.0 | —Observed 2026-04-19 | — | ||
| 72.5 | v4Observed 2026-04-19 | — | ||
| 91.8 | —Observed 2025-12-11 | — | ||
| 1486.0 | —Observed 2026-04-28 | — | Source Source: LMArena (lmarena.ai), CC BY 4.0 | |
| 81.0 | official Google DeepMind model card, Thinking High, no toolsObserved 2025-11-18 | — | ||
| 91.9 | —Observed 2025-12-11 | — | ||
| 76.2 | —Observed 2025-12-11 | — | ||
| 1289.0 | vision_style_control overall 2026-10-19 (style control, default view)Observed 2026-10-26 | Configuration: Gemini 3 Pro Harness: LMArena blind pairwise human votes, Bradley-Terry Evaluator: LMArena Confidence: confirmed Notes: LMArena vision style control leaderboard, overall category, published 2026-10-19 (HF lmarena-ai/leaderboard-dataset @9761a3ce, latest split). Board entry 'Gemini 3 Pro': rank 14, Arena Score 1289.3 (95% CI 1281.9-1296.7), 13623 votes. Retrieved 2026-10-26. | Source Source: LMArena (lmarena.ai), CC BY 4.0 | |
| 1482.0 | text creative_writing 2026-10-22Observed 2026-10-22 | Configuration: Gemini 3 Pro Harness: LMArena blind pairwise human votes, Bradley-Terry Evaluator: LMArena Confidence: confirmed Notes: LMArena Text arena, Creative Writing category (no style control), board published 2026-10-22 (HF lmarena-ai/leaderboard-dataset @a467e6b9, text config, latest split). Board entry 'Gemini 3 Pro' (category creative_writing in text/latest-00000-of-00001.parquet): rank 13 of 416, rating 1482.5 (95% CI 1474.4-1490.5), 6542 votes. LLM Reference model is lifecycle-deprecated; score kept as historical. Source: LMArena (CC BY 4.0). Retrieved 2026-10-27. | Source Source: LMArena (lmarena.ai), CC BY 4.0 |