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Gemini 2.5 Flash
google·google/gemini-2.5-flash·GA·Closed·gemini-flash series
Fast Gemini workhorse for multimodal apps where latency and price matter
At a glance
Official price$0.30 / $2.50 per 1M
Cache read $0.03 · Vertex
Lowest paid$0.09 / $0.71
QiHang Gateway · 3.3× spread
1 more $0 channels
Context1,048,576
⚠ Providers report 1,000,000–1,065,535; the table below is authoritative
Output limit65,536
Capabilities
✓ Reasoning✓ Tool use✓ Structured output✓ Temperature✓ Attachments
⚠ Providers report capability flags inconsistently
Modalities
TextImageAudioVideoPDF
Knowledge cutoff2025-01
Released / updated2025-06-17 / 2025-06-17
Quality & performanceArtificial Analysis · Intelligence Index v4.1 · rep. tier Reasoning
Intelligence20.3
Value83
Coding—
Agentic—
Output speed225 tok/s
TTFT19.09 s
Value formulaIQ 20.3 ÷ min blended $0.245 = 83
Reasoning tier → intelligence / speed (higher tier = stronger but slower)
Non-reasoningIQ 14.2 · 200 tok/s
ReasoningIQ 20.3 · 225 tok/s
Quality is independently evaluated by Artificial Analysis. Speed/latency are model-level medians.
Available at 31 providers28 with public prices · 1 free
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Kenari gemini-2-5-flash | Gateway | Free | — | — | 1,048,576 | 65,536 | ||
| QiHang | Gateway | $0.09 tiered >200K: $0.09 | $0.71 | — | — | 1,048,576 | 65,536 | |
| Poe | Gateway | $0.21 | $1.80 | $0.021 | — | 1,065,535 ⚠ | 65,535 | |
| Jiekou.AI | Gateway | $0.27 | $2.25 | — | — | 1,048,576 | 65,535 | |
| Cortecs | Gateway | $0.299 | $2.49 | $0.029 | $0.097 | 1,048,576 | 1,048,576 | |
| OrcaRouter | Gateway | $0.30 | $2.50 | $0.03 | — | 1,048,576 | 65,536 | |
| NanoGPT | Gateway | $0.30 | $2.50 | $0.03 | — | 1,048,756 ⚠ | 65,536 | |
| VertexOfficial | First-party | $0.30 | $2.50 | $0.03 | — | 1,048,576 | 65,536 | |
| GoogleOfficial | First-party | $0.30 | $2.50 | $0.03 | — | 1,048,576 | 65,536 | |
| Impossibl | Gateway | $0.30 | $2.50 | $0.03 | — | 1,048,576 | 65,536 | |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Your usage cost
1QiHang$53.50
2Poe$109.32
3Cortecs$151.95
4OrcaRouter$152.60
5NanoGPT$152.60
6Vertex · Official$152.60
1 more channels offer $0 (Kenari); free tiers usually have rate limits and no SLA, excluded from ranking.
Switch to QiHang to save $99.10/mo (65%)
Note: this is a gateway; verify availability and rate limits yourself.
Benchmark4 items
| Name | Conditions | Score | Metric | Source |
|---|---|---|---|---|
| Aider Polyglot | — | 55.1 | percent correct | Source ↗ |
| Artificial Analysis Coding Index | — | 22.2 | index | Source ↗ |
| SciCode | — | 39.4 | percent correct | Source ↗ |
| Terminal-Bench Hard | — | 13.6 | success rate | Source ↗ |
The same benchmark scores very differently across harness / dataset, so the qualifying conditions must be shown together.
Reasoning control
budget_tokenseffort = noneeffort = loweffort = mediumeffort = highToggle (on / off)effort = xhigheffort = maxeffort = minimal
7 / 31 providers expose no reasoning control (reasoning_options: []).
Related models
Gemini 3.7 Flashsame series$0.75 / $3.75Gemini 3.7 Flash (Google Vertex AI)same series$0.75 / $3.75Gemini 3.7 Flash (Google AI Studio)same series$0.75 / $3.75DeepSeek V4 Flashcheaper alternative$0.14 / $0.28GPT-5.6 Lunacheaper alternative$0.20 / $1.20MiMo-V2.5cheaper alternative$0.14 / $0.28Gemini 2.5 Flash-Litecheaper alternative$0.10 / $0.40
Price historyone sample accumulated per data sync
Input listOutput listMin blended