Opper is a third-party gateway that routes to many upstream models through one API. Gateway quotes are often among the lowest on the site, but availability, rate limits and routing can vary between models, so a low headline price is worth verifying against your own workload.
It lists 57 models on this page. Coverage spans text and chat (57). The lowest-priced model hosted here is GPT OSS 20B.
| Cheapest here? | |||||
|---|---|---|---|---|---|
| GPT OSS 20Bgpt-oss-20b | $0.12 | $0.49 | — | 128,000 | 11.6× pricier |
| GLM-5.3-Flashglm-5.3-flash | $0.20 | $0.50 | $0.07 | 1,000,000 | 5.8× pricier |
| DeepSeek V4 Flashdeepseek-v4-flash | $0.25 | $0.66 | — | 1,000,000 | 8.1× pricier |
| GPT-5.6 Lunagpt-5.6-luna | $0.20 | $1.20 | $0.02 | 1,000,000 | 3.3× pricier |
| GPT-5.4 nanogpt-5.4-nano | $0.20 | $1.25 | $0.02 | 400,000 | 1.3× pricier |
| Qwen3.6 35B-A3Bqwen3.6-35b-a3b | $0.25 | $1.49 | — | 262,144 | 5.1× pricier |
| Mistral Large 3mistral-large-2512 | $0.50 | $1.50 | — | 256,000 | 1.0× pricier |
| Devstral 2devstral-2512 | $0.40 | $2.00 | — | 256,000 | 1.0× pricier |
| Gemini 3.5 Flash Litegemini-3.5-flash-lite | $0.30 | $2.50 | $0.03 | 1,048,576 | 2.0× pricier |
| Gemma 4 31B ITgemma-4-31b-it | $0.46 | $2.44 | — | 256,000 | 7.0× pricier |
| Sonarsonar | $1.00 | $1.00 | — | 128,000 | 1.2× pricier |
| Qwen3 Coder Nextqwen3-coder-next | $0.58 | $2.32 | — | 262,144 | 4.1× pricier |
| Mistral Small 4mistral-small-2603 | $0.58 | $2.44 | — | 256,000 | 4.0× pricier |
| MiniMax-M3minimax-m3 | $0.60 | $2.40 | $0.12 | 1,000,000 | 2.8× pricier |
| Gemini 3 Flash Previewgemini-3-flash-preview | $0.50 | $3.00 | $0.05 | 1,048,576 | 7.0× pricier |
| Qwen3.8 27Bqwen3.8-27b | $0.58 | $3.00 | — | 262,144 | 10.4× pricier |
| MiniMax-M2.7minimax-m2.7 | $0.70 | $2.79 | — | 196,608 | 8.7× pricier |
| Grok Build 0.1grok-build-0.1 | $1.00 | $2.00 | $0.20 | 256,000 | 1.0× pricier |
| Gemini 3.7 Flashgemini-3.7-flash | $0.75 | $3.75 | $0.075 | 1,048,576 | 1.0× pricier |
| Grok 4.3grok-4.3 | $1.25 | $2.50 | $0.20 | 1,000,000 | 1.0× pricier |
| Gemini 3.8 Flashgemini-3.8-flash | $0.83 | $4.13 | $0.083 | 1,048,576 | 1.1× pricier |
| GPT-5.4 minigpt-5.4-mini | $0.75 | $4.50 | $0.075 | 400,000 | 1.3× pricier |
| Muse Spark 1.2muse-spark-1.2 | $1.25 | $4.25 | $0.15 | 1,048,576 | 1.0× pricier |
| Muse Spark 1.3muse-spark-1.3 | $1.25 | $4.25 | $0.15 | 1,048,576 | 1.0× pricier |
| GPT OSS 120Bgpt-oss-120b | $1.16 | $4.88 | — | 128,000 | 35.5× pricier |
| Claude Haiku 4.5 (latest)claude-haiku-4-5 | $1.10 | $5.50 | $0.11 | 200,000 | 1.6× pricier |
| DeepSeek V4 Prodeepseek-v4-pro | $1.79 | $3.58 | — | 1,000,000 | 8.6× pricier |
| GLM-5.3glm-5.3 | $1.75 | $4.65 | $0.44 | 1,000,000 | 3.8× pricier |
| GLM-5.2glm-5.2 | $1.63 | $5.81 | — | 1,000,000 | 5.5× pricier |
| Qwen3.8 Maxqwen3.8-max | $2.00 | $6.00 | $0.25 | 983,616 | 1.2× pricier |
| Grok 4.6grok-4.6 | $2.00 | $6.00 | $0.50 | 500,000 | 1.2× pricier |
| Grok 4.5grok-4.5 | $2.00 | $6.00 | $0.50 | 500,000 | 1.0× pricier |
| Gemini 3.5 Flashgemini-3.5-flash | $1.50 | $9.00 | $0.15 | 1,048,576 | 8.1× pricier |
| Qwen3.8 2.4T A95Bqwen3.8-2.4t-a95b | $2.50 | $6.00 | $0.63 | 262,144 | 1.1× pricier |
| Sonar Reasoning Prosonar-reasoning-pro | $2.00 | $8.00 | — | 128,000 | 1.0× pricier |
| Claude Sonnet 5claude-sonnet-5 | $2.20 | $11.00 | $0.22 | 1,000,000 | 1.5× pricier |
| GPT-5.6 Terragpt-5.6-terra | $2.00 | $12.00 | $0.20 | 1,000,000 | 2.8× pricier |
| Gemini 3.1 Pro Previewgemini-3.1-pro-preview | $2.00 | $12.00 | $0.20 | 1,048,576 | 2.0× pricier |
| GPT-5.3 Codexgpt-5.3-codex | $1.75 | $14.00 | $0.18 | 400,000 | 1.3× pricier |
| GPT-5.3 Chat (latest)gpt-5.3-chat-latest | $1.75 | $14.00 | $0.18 | 128,000 | 1.0× pricier |
| GPT-5.4gpt-5.4 | $2.50 | $15.00 | $0.25 | 1,050,000 | 2.7× pricier |
| Kimi K3kimi-k3 | $3.00 | $15.00 | — | 1,048,576 | 1.7× pricier |
| Sonar Prosonar-pro | $3.00 | $15.00 | — | 200,000 | 1.0× pricier |
| Claude Sonnet 4.6claude-sonnet-4-6 | $3.30 | $16.50 | $0.33 | 1,000,000 | 3.2× pricier |
| Claude Sonnet 4.5 (latest)claude-sonnet-4-5 | $3.30 | $16.50 | $0.33 | 200,000 | 1.1× pricier |
| Claude Opus 4.8claude-opus-4-8 | $5.00 | $25.00 | $0.50 | 1,000,000 | 11.8× pricier |
| Claude Opus 4.6claude-opus-4-6 | $5.00 | $25.00 | $0.50 | 1,000,000 | 1.2× pricier |
| Claude Opus 4.5 (latest)claude-opus-4-5 | $5.00 | $25.00 | $0.50 | 200,000 | 1.0× pricier |
| Claude Opus 4.7claude-opus-4-7 | $5.50 | $27.50 | $0.55 | 1,000,000 | 1.3× pricier |
| Claude Opus 5claude-opus-5 | $5.50 | $27.50 | $0.55 | 1,000,000 | 1.1× pricier |
| GPT-5.5gpt-5.5 | $5.00 | $30.00 | $0.50 | 1,050,000 | 2.7× pricier |
| GPT-5.6 Solgpt-5.6-sol | $5.00 | $30.00 | $0.50 | 1,000,000 | 2.8× pricier |
| Claude Fable 5claude-fable-5 | $10.00 | $50.00 | $1.00 | 1,000,000 | 2.9× pricier |
| Claude Fable 5.1claude-fable-5-1 | $10.00 | $50.00 | $0.25 | 1,000,000 | 1.0× pricier |
| GPT-6 Astragpt-6-astra | $10.00 | $50.00 | $1.00 | 1,050,000 | 1.3× pricier |
| GPT-5.5 Progpt-5.5-pro | $30.00 | $180 | — | 1,050,000 | 1.1× pricier |
| GPT-5.4 Progpt-5.4-pro | $30.00 | $180 | — | 1,050,000 | 1.3× pricier |