Gemini 2.5 Flash
Google · released Jun 17, 2025
- Type
- Proprietary
- Input
- $0.30
- Output
- $2.50
- Cached
- Not published
List price · per 1M tokens · Google AI at 1M context · source ↗
Our take
Written Aug 3, 2026Gemini 2.5 Flash is a general-purpose model from Google that handles text, images, files, audio and video in a single request of up to one million tokens. It offers a wide speed choice on the same provider, from a slow budget tier to a fast expensive one, with measured coding strength but no disclosed model size.
Choose this for long-context multimodal work that needs one million tokens in one request, or for coding workloads where its measured scores are sufficient. Pick the slow tier when cost matters more than speed, and the fast tier when latency is critical. Skip it if you need to know the model size, if you want to download weights to run locally, or if you need predictable throughput that maps cleanly to price.
The case for it
- One-million-token request limit, among the longest available.
- Measured coding competence: strong scores on both the live coding benchmark and the coding-specific leaderboard we track.
- Wide speed choice on the same provider, spanning over thirty times the throughput at under four times the price.
- Consistent leaderboard scores across different evaluation dates.
The case against it
- Throughput is unpredictable and poorly explained: the same price point lists different speeds at different providers, and the same provider lists different prices for different speeds with no clear mapping.
- Model size is undisclosed; Google has not published a parameter count.
- Proprietary weights only, with no download option and licence terms unverified in our data.
How good is it?
IntelligencePuzzles, maths, exam questions
Arena Text (overall)71st of 143 · 1410.2
CodingWriting and fixing code on its own
Arena Coding90th of 143 · 1423.6
AgenticPlanning, calling tools, staying on task
Gemini 2.5 Flash is not on Arena Agent (IPS), which is where the rating would come from, so there is no rating here. It is on SWE-bench Verified, in 32nd of 39 with 28.7.
WritingWe do not rate this
Two boards come close and neither tests writing: Arena Creative Writing asks people which of two replies they prefer, and LiveBench Language tests whether a model understood a passage. So we show where Gemini 2.5 Flash placed and give it no mark out of five.
These tests check whether a model follows instructions — a precondition for all the work above, but not a measure of how well that work is done, which is why they get no rating.
Every published score for this model8 scoresEvery figure we hold, from 8 boards, with who ran it and a link to the source — including the boards no rating above is built on.
Or rent it from someone else
The lab is also the cheapest we hold. The strip above and this offer are the same one, so nothing on this page undercuts Google AI on 1M of context.
- per 1M tokens
- $0.30 in / $2.50 out
- Context served
- 1M
- Throughput
- Not measured
| Provider | In / out per 1M tokens | Context | Throughput | Trains on prompts | Logs prompts | Zero retention |
|---|---|---|---|---|---|---|
| Google AI Studioflex tier | $0.15 / $1.25 | 1M | 49 tok/s | No | Yes55 days | Unknown |
| DeepInfra | $0.30 / $2.50 | 1M | not measured | Unknown | Unknown | Unknown |
| Google AI | $0.30 / $2.50 | 1M66K out | not measured | Unknown | Unknown | Unknown |
| Google Vertex AIglobal | $0.30 / $2.50 | 1M | 88 tok/s | No | No | Confirmed |
| Google Vertex AIeu | $0.30 / $2.50 | 1M | 99 tok/s | No | No | Confirmed |
| Google Vertex AI | $0.30 / $2.50 | 1M | 57 tok/s | No | No | Confirmed |
| Google AI Studio | $0.30 / $2.50 | 1M | 111 tok/s | No | Yes55 days | Unknown |
| OpenRouter | $0.30 / $2.50 | 1M | not measured | Unknown | Unknown | Unknown |
| Google AI Studiopriority tier | $0.54 / $4.50 | 1M | 94 tok/s | No | Yes55 days | Unknown |
Google AI Studio
DeepInfra
Google Vertex AI
OpenRouterAcross the 9 listings we hold: 6 say they do not train on prompts, 0 say they do and 3 do not say. 3 appear in the zero-retention registry we check; the rest are unknown to us rather than confirmed either way.
What each host's API supports
From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.
- ✓
- Supported
- ✗
- Not supported
- Not published
- host gave no parameter list
| Provider | Tool calling | JSON output | Strict schema |
|---|---|---|---|
| Google AI Studioflex | ✓ | ✓ | ✓ |
| DeepInfra | |||
| Google AI | |||
| Google Vertex AIglobal | ✓ | ✓ | ✓ |
| Google Vertex AIeu | ✓ | ✓ | ✓ |
| Google Vertex AI | ✓ | ✓ | ✓ |
| Google AI Studio | ✓ | ✓ | ✓ |
| OpenRouter | ✓ | ✓ | ✓ |
| Google AI Studiopriority | ✓ | ✓ | ✓ |
Tool calling: 7 of 9 listings say yes, 2 publish no parameter list. JSON output: 7 of 9 listings say yes, 2 publish no parameter list. Strict schema: 7 of 9 listings say yes, 2 publish no parameter list.
Models people weigh against Gemini 2.5 Flash
When we formed this view
Dates behind this page
Prices last checked 9d ago
What we do not know about this model yet
- 2 of 9 listings publish no parameter list, so what their API accepts is unknown to us.
- Nothing we hold says whether an endpoint streams, so we do not show it either way.
- 3 of 9 listings do not say whether they train on prompts.
Licence and identifiers
What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.
Licence
Commercial API terms. We hold no licence record for this model, so there is nothing to summarise here.
Identifiers
- Modality record
- text+image+file+audio+video->text
- Catalogue slug
- google-gemini-2-5-flash