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Gemini 2.5 Flash vs Gemini 2.5 Ultra

Google DeepMind vs Google DeepMind. Specs, benchmarks, and real per-task cost — all in one page.

Verdict

Gemini 2.5 Ultra leads on LMSYS ELO (1385 vs 1312). Gemini 2.5 Flash is ~20.0× cheaper on a 3:1 input:output blend.

Google DeepMind

Google’s price/performance darling. 1M context at $0.30/M input — nobody comes close on throughput-per-dollar.

Absurd cost-to-context ratioFast multimodalFree tier via AI Studio

Google DeepMind

2M-token context, native video understanding, and Google’s deepest multimodal stack. The long-context king.

2M context windowNative videoBest multimodal reasoning

Pricing

Input / 1M$0.30$7.00

Output / 1M$1.20$21.00

Context1.0M2.0M

Max output32K64K

LicenseProprietaryProprietary

Released2026-02-052026-02-05

Benchmarks

LMSYS ELO1312.01385.0

MMLU Pro82.190.4

HumanEval85.890.2

SWE-Bench—58.3

MATH84.292.0

MMMU74.682.1

IFEval86.189.7

Per-task cost

Summarize a 1-hour meeting transcript$0.0051$0.115

Review a 500-line pull request$0.0048$0.098

Answer a customer support ticket$0.0019$0.038

Extract structured data from a resume$0.0027$0.056

Debug a stack trace with context$0.0042$0.084

Per-call cost using published token counts for each task. Real-world prompts vary.

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