Granite Code 8B vs Gemini 3 Flash: Which AI Model Should You Choose?
Pricing, context windows, latency, capabilities, and a one-line code switch — everything you need to pick the right model.
Choose Granite Code 8B for cost-sensitive workloads — it is roughly 10.0× cheaper on input tokens. Choose Gemini 3 Flash when you need its broader capabilities or stronger benchmarks.
Choose Gemini 3 Flash for long documents (1.0M tokens context). Choose Granite Code 8B for shorter prompts where the smaller window keeps latency and cost down.
These models serve different use cases (Code vs Multimodal) — pick the one whose category matches your workload.
Side-by-side specs
| Spec | Granite Code 8B | Gemini 3 Flash |
|---|---|---|
| Provider | Replicate | |
| Category | Code | Multimodal |
| Input cost / 1M tokens | $0.060 | $0.60 |
| Output cost / 1M tokens | $0.30 | $3.60 |
| Context window | 128K tokens | 1.0M tokens |
| Max output tokens | 8,192 | 65,536 |
| Avg. latency | — | — |
| Featured | — | Yes |
| New | — | Yes |
| Capabilities | text | text image audio video |
Pricing example
A typical chat workload of 100,000 input tokens plus 50,000 output tokens.
100K in × $0.060 + 50K out × $0.30
100K in × $0.60 + 50K out × $3.60
For this workload, Granite Code 8B is cheaper than Gemini 3 Flash by $0.22 per request.
Switch in one line
Both models live behind Railwail's OpenAI-compatible endpoint. Replace the model string and you are done.
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.RAILWAIL_API_KEY,
baseURL: "https://railwail.com/v1",
});
// Before — using Granite Code 8B
let r = await client.chat.completions.create({
model: "ibm-granite/granite-8b-code-instruct-128k",
messages: [{ role: "user", content: "Hello" }],
});
// After — switched to Gemini 3 Flash
r = await client.chat.completions.create({
model: "gemini-3-flash-preview",
messages: [{ role: "user", content: "Hello" }],
});from openai import OpenAI
client = OpenAI(
api_key=os.environ["RAILWAIL_API_KEY"],
base_url="https://railwail.com/v1",
)
# Before — using Granite Code 8B
r = client.chat.completions.create(
model="ibm-granite/granite-8b-code-instruct-128k",
messages=[{"role": "user", "content": "Hello"}],
)
# After — switched to Gemini 3 Flash
r = client.chat.completions.create(
model="gemini-3-flash-preview",
messages=[{"role": "user", "content": "Hello"}],
)# Before — using Granite Code 8B
curl https://railwail.com/v1/chat/completions \
-H "Authorization: Bearer $RAILWAIL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "ibm-granite/granite-8b-code-instruct-128k",
"messages": [{"role": "user", "content": "Hello"}]
}'
# After — switched to Gemini 3 Flash
curl https://railwail.com/v1/chat/completions \
-H "Authorization: Bearer $RAILWAIL_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gemini-3-flash-preview",
"messages": [{"role": "user", "content": "Hello"}]
}'Which one wins for...
Quick verdicts derived from public specs. Always validate on your own workload.
Higher coding category match or larger context wins.
Bigger context window helps maintain long-form coherence.
The larger context window is the deciding factor.
Multimodal/vision support is required for image inputs.
Lower average latency wins for interactive UX.
The model with the lower input-token price wins.
Frequently asked questions
Try Granite Code 8B and Gemini 3 Flash side by side
One API key, one endpoint, both models. Start free — no credit card required.