compare/Claude Opus 5vsGemini Omni Flash

Claude Opus 5 vs Gemini Omni 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.
 Claude Opus 5
anthropic/claude-opus-5
Gemini Omni Flash
google/gemini-omni-flash
ProviderAnthropicGoogle
FamilyClaude 4
Modalitytextvideo
Context window1,000,000 tok
Max output128,000 tok
Released2026-07-242026-09-09
Input price$5.00 /1M$1.50 /sec
Output price$25.00 /1M
Cache read
Toolsyes
Streamingyes
Visionyes
JSON modeyes
Reasoningyes
Prompt caching
Claude Opus 5
anthropic/claude-opus-5
Full spec →

Claude Opus 5 is Anthropic's model for complex agentic coding and enterprise work, delivering intelligence close to Claude Fable 5 at half the price. It uses adaptive thinking to calibrate reasoning per task and supports a one million token context window at standard pricing. Unlike Fable 5, Opus 5 has no data retention requirements for general access.

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

Preview high-performance multimodal video generation and editing model with conversational controls and generated audio.

Strengths
  • Text-to-video generation
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 Claude Opus 5
client.chat.completions.create(
    model="anthropic/claude-opus-5",
    messages=[{"role":"user","content":"hello"}],
)

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

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