Gemini 1.0 Ultra vs Gemini 2.5 Flash Preview: Benchmarks, Pricing, and Context Window Comparison
Gemini 1.0 Ultra vs Gemini 2.5 Flash Preview compares provider, context window, token pricing, benchmark performance, and release timeline in one side-by-side view. Use this page to quickly identify which model is a better fit for your production constraints, quality targets, and estimated cost per request.
Verdict
Use pricing, benchmark scores, context window limits, and release recency together to choose between Gemini 1.0 Ultra and Gemini 2.5 Flash Preview.
Author: Mirai Minds Research Team
Last updated:
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Overview
Gemini 1.0 Ultra was released 14 months before Gemini 2.5 Flash Preview.
| Gemini 1.0 Ultra | Gemini 2.5 Flash Preview | |
|---|---|---|
Provider The entity that provides this model. | Google | Google |
Input Context Window The number of tokens supported by the input context window. | 32.8k tokens | 1,048,576 tokens |
Maximum Output Tokens The number of tokens that can be generated by the model in a single request. | 8,192 tokens | 65,536 tokens |
Release Date When the model was first released. | Feb 08, 2024 over 1 yearago 2024-02-08 | Apr 17, 2025 over 1 year 2025-04-17 |
Leaderboard
| Gemini 1.0 Ultra | Gemini 2.5 Flash Preview | |
|---|---|---|
Rank | Unknown | Unknown |
Arena Elo | Not specified. | Not specified. |
95% CI | Not specified. | Not specified. |
Votes | Not specified. | Not specified. |
License | Not specified. | Not specified. |
Knowledge Cutoff | Unknown | Unknown |
Pricing
| Gemini 1.0 Ultra | Gemini 2.5 Flash Preview | |
|---|---|---|
Input Cost of input data provided to the model. | Pricing not available. | $0.15 per million tokens |
Output Cost of output tokens generated by the model. | Pricing not available. | $0.60 per million tokens |
Benchmarks
Compare relevant benchmarks between Gemini 1.0 Ultra and Gemini 2.5 Flash Preview Instruct.
| Gemini 1.0 Ultra | Gemini 2.5 Flash Preview | |
|---|---|---|
MMLU Evaluating LLM knowledge acquisition in zero-shot and few-shot settings. | 83.7 (5-shot) | 88.4 (5-shot) |
MMMU A wide ranging multi-discipline and multimodal benchmark. | 59.4 | 76.7 |
HellaSwag A challenging sentence completion benchmark. | Benchmark not available. | Benchmark not available. |