compare/Gemini 2.5 ProvsGemini 2.5 Flash

Gemini 2.5 Pro vs Gemini 2.5 Flash

Pricing, context window, capabilities, and release date — pulled from each provider's public docs. Both are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

RUN BOTH LIVE

Paste a prompt. Watch them race.

Both models stream in parallel through your own AIgateway key. Tokens, latency, and cost update as they arrive.

Sign in to runLive streaming uses your own key. It's free to sign up.
 Gemini 2.5 Pro
google/gemini-2.5-pro
Gemini 2.5 Flash
google/gemini-2.5-flash
ProviderGoogleGoogle
Family
Modalitytexttext
Context window1,000,000 tok1,000,000 tok
Max output65,536 tok8,192 tok
Released2026-05-222026-05-22
Input price$1.25 /1M$0.300 /1M
Output price$10.00 /1M$2.50 /1M
Cache read
Tools
Streamingyesyes
Visionyesyes
JSON mode
Reasoning
Prompt caching
Gemini 2.5 Pro
google/gemini-2.5-pro
Full spec →

Google's most capable Gemini 2.5 model with strong reasoning, thinking support, and a 1M token context window.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
Gemini 2.5 Flash
google/gemini-2.5-flash
Full spec →

Google's fast multimodal Gemini 2.5 model with strong reasoning and a 1M token context window.

Strengths
  • General-purpose chat
  • Long context
  • Tool use
SWITCH BETWEEN THEM

One key, both models, one line different.

# pip install aigateway-py openai
# aigateway-py: sub-accounts, evals, replays, jobs, webhook verify.
# openai SDK: chat/embeddings/images/audio — drop-in compat per our SDK's own guidance.
from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

# Try Gemini 2.5 Pro
client.chat.completions.create(
    model="google/gemini-2.5-pro",
    messages=[{"role":"user","content":"hello"}],
)

# Try Gemini 2.5 Flash — same client, same key
client.chat.completions.create(
    model="google/gemini-2.5-flash",
    messages=[{"role":"user","content":"hello"}],
)
Get an AIgateway keyAdd a third model

Compare with another

Claude Opus 4.8 vs Gemini 2.5 Pro
anthropic/claude-opus-4.8 · google/gemini-2.5-pro
Claude Opus 4.8 vs Gemini 2.5 Flash
anthropic/claude-opus-4.8 · google/gemini-2.5-flash
DeepSeek V4 Pro vs Gemini 2.5 Pro
deepseek/deepseek-v4-pro · google/gemini-2.5-pro
DeepSeek V4 Pro vs Gemini 2.5 Flash
deepseek/deepseek-v4-pro · google/gemini-2.5-flash
MiniMax M3 vs Gemini 2.5 Pro
minimax/m3 · google/gemini-2.5-pro
MiniMax M3 vs Gemini 2.5 Flash
minimax/m3 · google/gemini-2.5-flash
Gemini 3.1 Pro vs Gemini 2.5 Pro
google/gemini-3.1-pro · google/gemini-2.5-pro
Gemini 3.1 Pro vs Gemini 2.5 Flash
google/gemini-3.1-pro · google/gemini-2.5-flash
Claude Sonnet 4.6 vs Gemini 2.5 Pro
anthropic/claude-sonnet-4.6 · google/gemini-2.5-pro