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.
Both models stream in parallel through your own AIgateway key. Tokens, latency, and cost update as they arrive.
| Claude Haiku 4.5 anthropic/claude-haiku-4.5 | Flux-2-Klein-9b black-forest-labs/flux-2-klein-9b | |
|---|---|---|
| Provider | Anthropic | Black Forest Labs |
| Family | Claude 4 | Flux |
| Modality | text | image |
| Context window | 200,000 tok | — |
| Max output | 8,192 tok | — |
| Released | 2026-04-13 | 2026-01-14 |
| Input price | $1.00 /1M | $0.040 /img |
| Output price | $5.00 /1M | — |
| Cache read | $0.100 /1M | — |
| Tools | yes | — |
| Streaming | yes | — |
| Vision | yes | — |
| JSON mode | yes | — |
| Reasoning | yes | — |
| Prompt caching | yes | — |
Claude Haiku 4.5 delivers similar levels of coding performance at one-third the cost and more than twice the speed of larger models.
FLUX.2 [klein] 9B is a 9 billion parameter model that can generate images from text descriptions and supports multi-reference editing capabilities.
from openai import OpenAI
client = OpenAI(
base_url="https://api.aigateway.sh/v1",
api_key="sk-aig-...",
)
# Try Claude Haiku 4.5
client.chat.completions.create(
model="anthropic/claude-haiku-4.5",
messages=[{"role":"user","content":"hello"}],
)
# Try Flux-2-Klein-9b — same client, same key
client.chat.completions.create(
model="black-forest-labs/flux-2-klein-9b",
messages=[{"role":"user","content":"hello"}],
)