AllocateCogito v2.1 671B vs Gemini 3.1 Pro
Cogito v2.1 671B is not currently in the Allocate serving catalog, so this page lists no prices for it: every price on this site comes from the live catalog.
C Cogito v2.1 671B
Gemini 3.1 Pro
Gemini 3.1 ProLabDeep CogitoGoogle
AccessNot served on AllocateAPI only
Context windown/a1M tokens
List price, inputNot served$2 / M tokens
List price, outputNot served$12 / M tokens
Cached inputn/an/a
LicenseNot listedProprietary API
Fine-tunableYesNo
Specifications and provider list prices from the Allocate catalog, checked 2026-09-12.
Choose Cogito v2.1 671B for
- Long reasoning chains
- Open-weight agents
- Self-hosted reasoning
Choose Gemini 3.1 Pro for
- Judgment-heavy workflows
- Long-context analysis
- Escalation tier above Flash
Common questions
Which has the bigger context window?
Gemini 3.1 Pro: 1,000,000 tokens (1M) against an unlisted window for Cogito v2.1 671B.
Can I fine-tune Cogito v2.1 671B or Gemini 3.1 Pro?
Cogito v2.1 671B publishes open weights (Not listed) and can be fine-tuned on your own data. Gemini 3.1 Pro is a closed model served over API; its weights are not available.
Related comparisons
Cogito v2.1 671B vs Gemini 3.5 FlashGemini 3.1 Pro vs Gemini 3.5 FlashCogito v2.1 671B vs Meta Llama 3.1 405B InstructGemini 3.1 Pro vs Meta Llama 3.1 405B InstructCogito v2.1 671B vs GLM 5.2Gemini 3.1 Pro vs GLM 5.2
Run the numbers on your workload
Or do not choose. On Allocate a route name is the contract: point yours at one model today, swap to the other tomorrow, and compare them on your live traffic with per-token metering.