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R1 vs Gemini 2.5 Flash
Pricing is only the shared seller matrix below. Best rates and catalog map are separate sections, so no chart is embedded in pricing. Open the calculator for the same workload on each side.
Model
Gemini 2.5 Flash
Best $0.300 in · $2.50 out
Context window 1.0M
Gemini 2.5 Flash is 45% cheaper on input. R1 is 12% cheaper on output. The best choice depends on your input/output ratio.
Pricing matrix
Shared sellers only. Each row is a host that lists both models. Dollar amounts are per 1M tokens. Lowest in each pair of columns is emphasized.
| Provider | R1 in | R1 out | Gemini 2.5 Flash in | Gemini 2.5 Flash out |
|---|---|---|---|---|
| Azure | $1.35 | $5.40 | N/A | N/A |
| DeepInfra | $0.700 | $2.40 | $0.300 | $2.50 |
| Deepseek | $0.550 | $2.19 | N/A | N/A |
| Fireworks AI | $3.00 | $8.00 | N/A | N/A |
| N/A | N/A | $0.300 | $2.50 | |
| Google Vertex | N/A | N/A | $0.300 | $2.50 |
| Hyperbolic | $0.400 | $0.400 | N/A | N/A |
| Nebius | $0.800 | $2.40 | N/A | N/A |
| Novita | $0.700 | $2.50 | N/A | N/A |
| Openrouter | $0.700 | $2.50 | $0.300 | $2.50 |
| Replicate | $3.75 | $10.00 | $2.50 | $2.50 |
| Sambanova | $5.00 | $7.00 | N/A | N/A |
| Snowflake | $1.35 | $5.40 | N/A | N/A |
| Together AI | $3.00 | $7.00 | N/A | N/A |
| Vercel Ai Gateway | $0.550 | $2.19 | $0.300 | $2.50 |
Best listed rates (this pair)
Same "best row in current pricing" logic as model pages: a compact view of the lowest input and output we show for each side. This is not the seller matrix.
Catalog map · Deepseek · Google
Each chart uses real catalog rows that include both list input and list output ($/1M). Larger green dots are the models on this comparison page; accent dots are other active models from that provider.
Deepseek · input vs output
Scatter chart: X = input $/M, Y = output $/M. This page's models are labeled on the green dots; hover others for detail.
One dot per catalog row that has both list prices. Green dots are labeled with the models on this page; hover any dot for name and prices. Upper-right means higher cost on both axes ($/1M).
Google · input vs output
One dot per catalog row that has both list prices. Green dots are labeled with the models on this page; hover any dot for name and prices. Upper-right means higher cost on both axes ($/1M).
Specifications
Each column header is the full model name. Tint marks the favorable value where we compute a winner.
- Context window
- 163,840 tokens
- 1,000,000 tokens
- Max output tokens
- 163,840 tokens
- 1,000,000 tokens
- Vision
- No
- Yes
- Function calling
- Yes
- Yes
- Streaming
- No
- No
- Release date
- Jan 2025
- Jun 2025
Cost calculator
Same requests, input tokens, and output tokens for both columns. Pick the provider row that matches how you buy.
When to pick which
Short takeaways: no cards, just the points. Validate with your own workloads.
Long-context tasks
Use Gemini 2.5 Flash. Its 1000K context window handles large codebases and documents better than 163K.
High-volume text generation
Use R1. Output tokens are 12% cheaper, which compounds significantly at scale.
Long output (reports, code files)
Use Gemini 2.5 Flash. Its 1000K max output limit reduces the need to split requests.
Frequently asked questions
More comparisons
Other popular head-to-head matchups.
- R1 vs GPT-4o
R1 78% cheaper on output
- R1 vs Claude Sonnet 4.6
R1 85% cheaper on output
- R1 vs Gemini 2.0 Flash
Gemini 2.0 Flash 81% cheaper on output
- R1 vs Llama 3.1 70B
Compare pricing side by side
- Gemini 2.5 Flash vs GPT-4o
Gemini 2.5 Flash 75% cheaper on output
- Gemini 2.5 Flash vs Claude Sonnet 4.6
Gemini 2.5 Flash 83% cheaper on output