All Providers
76Models
29Families
1.1MMax Context
$0.05–$30Input Cost/MTok
$0.28–$180Output Cost/MTok
Capabilities
Reasoning
Tool Calling
Attachments
Open Weights
Setup
Set the following environment variable to use Impossibl:
IMPOSSIBL_API_KEYModels (76)
| Model | Model ID | Input Cost | Output Cost | Context | Capabilities |
|---|---|---|---|---|---|
| GPT 5 Nanogpt-nano | openai/gpt-5-nano | $0.05/MTok | $0.40/MTok | 400K | ReasoningTools |
| GPT OSS 20Bgpt-oss | fireworks/gpt-oss-20b | $0.07/MTok | $0.30/MTok | 131.1K | ReasoningToolsOpen |
| GPT OSS 20Bgpt-oss | groq/gpt-oss-20b | $0.07/MTok | $0.30/MTok | 131.1K | ReasoningToolsOpen |
| Gemini 2.5 Flash Litegemini-flash-lite | google/gemini-2.5-flash-lite | $0.10/MTok | $0.40/MTok | 1.0M | ReasoningTools |
| GPT 4.1 nanogpt-nano | openai/gpt-4.1-nano | $0.10/MTok | $0.40/MTok | 1.0M | Tools |
| MiMo V2.5mimo | xiaomi/mimo-v2.5 | $0.14/MTok | $0.28/MTok | 1.0M | ReasoningToolsOpen |
| GPT OSS 120Bgpt-oss | groq/gpt-oss-120b | $0.15/MTok | $0.60/MTok | 131.1K | ReasoningToolsOpen |
| GPT 4o minigpt-mini | openai/gpt-4o-mini | $0.15/MTok | $0.60/MTok | 128K | Tools |
| GPT OSS 120Bgpt-oss | fireworks/gpt-oss-120b | $0.15/MTok | $0.60/MTok | 131.1K | ReasoningToolsOpen |
| DeepSeek V4 Flashdeepseek-flash | deepseek/deepseek-v4-flash | $0.19/MTok | $0.51/MTok | 1M | ReasoningToolsOpen |
| GPT 5.6 Lunagpt-luna | openai/gpt-5.6-luna | $0.20/MTok | $1.20/MTok | 1.1M | ReasoningTools |
| GPT 5.4 nanogpt-nano | openai/gpt-5.4-nano | $0.20/MTok | $1.25/MTok | 400K | ReasoningTools |
| GLM 4.5 Airglm-air | zai/glm-4.5-air | $0.20/MTok | $1.10/MTok | 131.1K | ReasoningToolsOpen |
| Qwen 3.6 Flashqwen3.6 | qwen/qwen3.6-flash | $0.25/MTok | $1.50/MTok | 1M | ReasoningTools |
| Gemini 3.1 Flash Litegemini-flash-lite | google/gemini-3.1-flash-lite | $0.25/MTok | $1.50/MTok | 1.0M | ReasoningTools |
| GPT 5.1 Codex minigpt-codex | openai/gpt-5.1-codex-mini | $0.25/MTok | $2/MTok | 400K | ReasoningTools |
| GPT 5 Minigpt-mini | openai/gpt-5-mini | $0.25/MTok | $2/MTok | 400K | ReasoningTools |
| Gemini 3.5 Flash Litegemini-flash-lite | google/gemini-3.5-flash-lite | $0.30/MTok | $2.50/MTok | 1.0M | ReasoningTools |
| Gemini 2.5 Flashgemini-flash | google/gemini-2.5-flash | $0.30/MTok | $2.50/MTok | 1.0M | ReasoningTools |
| GPT OSS 120Bgpt-oss | cerebras/gpt-oss-120b | $0.35/MTok | $0.75/MTok | 131.1K | ReasoningToolsOpen |
| Qwen 3.7 Plusqwen | qwen/qwen3.7-plus | $0.40/MTok | $1.60/MTok | 1M | ReasoningTools |
| GPT 4.1 minigpt-mini | openai/gpt-4.1-mini | $0.40/MTok | $1.60/MTok | 1.0M | Tools |
| GPT 3.5 turbogpt | openai/gpt-3.5-turbo | $0.50/MTok | $1.50/MTok | 16.4K | |
| GLM 4.7glm | zai/glm-4.7 | $0.60/MTok | $2.20/MTok | 204.8K | ReasoningToolsOpen |
| GLM 4.6glm | zai/glm-4.6 | $0.60/MTok | $2.20/MTok | 204.8K | ReasoningToolsOpen |
| GLM 4.5glm | zai/glm-4.5 | $0.60/MTok | $2.20/MTok | 131.1K | ReasoningToolsOpen |
| GPT 5.4 minigpt-mini | openai/gpt-5.4-mini | $0.75/MTok | $4.50/MTok | 400K | ReasoningTools |
| Claude Haiku 4.5 (latest)claude-haiku | anthropic/claude-haiku-4-5 | $1/MTok | $5/MTok | 200K | ReasoningTools |
| Grok Build 0.1grok-build | xai/grok-build-0.1 | $1/MTok | $2/MTok | 256K | ReasoningTools |
| GLM 5glm | zai/glm-5 | $1/MTok | $3.20/MTok | 204.8K | ReasoningToolsOpen |
| o4 minio-mini | openai/o4-mini | $1.10/MTok | $4.40/MTok | 200K | ReasoningTools |
| o3 minio-mini | openai/o3-mini | $1.10/MTok | $4.40/MTok | 200K | ReasoningTools |
| GLM 5 Turboglm | zai/glm-5-turbo | $1.20/MTok | $4/MTok | 200K | ReasoningTools |
| Gemini 2.5 Progemini-pro | google/gemini-2.5-pro | $1.25/MTok | $10/MTok | 1.0M | ReasoningTools |
| GPT 5 Codexgpt-codex | openai/gpt-5-codex | $1.25/MTok | $10/MTok | 400K | ReasoningTools |
| GPT 5.1 Codexgpt-codex | openai/gpt-5.1-codex | $1.25/MTok | $10/MTok | 400K | ReasoningTools |
| GPT 5.1gpt | openai/gpt-5.1 | $1.25/MTok | $10/MTok | 400K | ReasoningTools |
| GPT 5gpt | openai/gpt-5 | $1.25/MTok | $10/MTok | 400K | ReasoningTools |
| Grok 4.3grok | xai/grok-4.3 | $1.25/MTok | $2.50/MTok | 1M | ReasoningTools |
| Grok 4.20 (Reasoning)grok | xai/grok-4.20-0309-reasoning | $1.25/MTok | $2.50/MTok | 1M | ReasoningTools |
| Grok 4.20 (Non Reasoning)grok | xai/grok-4.20-0309-non-reasoning | $1.25/MTok | $2.50/MTok | 1M | Tools |
| GLM 5.2glm | zai/glm-5.2 | $1.40/MTok | $4.40/MTok | 1M | ReasoningToolsOpen |
| GLM 5.1glm | zai/glm-5.1 | $1.40/MTok | $4.40/MTok | 200K | ReasoningToolsOpen |
| GLM 5.2glm | fireworks/glm-5.2 | $1.40/MTok | $4.40/MTok | 1M | ReasoningToolsOpen |
| Gemini 3.6 Flashgemini-flash | google/gemini-3.6-flash | $1.50/MTok | $7.50/MTok | 1.0M | ReasoningTools |
| Gemini 3.5 Flashgemini-flash | google/gemini-3.5-flash | $1.50/MTok | $9/MTok | 1.0M | ReasoningTools |
| DeepSeek V4 Prodeepseek-thinking | deepseek/deepseek-v4-pro | $1.74/MTok | $3.48/MTok | 1M | ReasoningToolsOpen |
| GPT 5.2 Codexgpt-codex | openai/gpt-5.2-codex | $1.75/MTok | $14/MTok | 400K | ReasoningTools |
| GPT 5.3 Codexgpt-codex | openai/gpt-5.3-codex | $1.75/MTok | $14/MTok | 400K | ReasoningTools |
| GPT 5.2gpt | openai/gpt-5.2 | $1.75/MTok | $14/MTok | 400K | ReasoningTools |
| Inklingling | thinkingmachines/inkling | $1.87/MTok | $4.68/MTok | 65.5K | ReasoningToolsOpen |
| Claude Sonnet 5claude-sonnet | anthropic/claude-sonnet-5 | $2/MTok | $10/MTok | 1M | ReasoningTools |
| Gemini 3.1 Pro Previewgemini-pro | google/gemini-3.1-pro-preview | $2/MTok | $12/MTok | 1.0M | ReasoningTools |
| GPT 4.1gpt | openai/gpt-4.1 | $2/MTok | $8/MTok | 1.0M | Tools |
| GPT 5.6 Terragpt-terra | openai/gpt-5.6-terra | $2/MTok | $12/MTok | 1.1M | ReasoningTools |
| o3o | openai/o3 | $2/MTok | $8/MTok | 200K | ReasoningTools |
| Grok 4.5grok | xai/grok-4.5 | $2/MTok | $6/MTok | 500K | ReasoningTools |
| Qwen 3.7 Maxqwen | qwen/qwen3.7-max | $2.50/MTok | $7.50/MTok | 1M | ReasoningTools |
| Qwen 3.8 Max Previewqwen | qwen/qwen3.8-max-preview | $2.50/MTok | $7.50/MTok | 1M | ReasoningTools |
| GPT 5.4gpt | openai/gpt-5.4 | $2.50/MTok | $15/MTok | 1.1M | ReasoningTools |
| GPT 4ogpt | openai/gpt-4o | $2.50/MTok | $10/MTok | 128K | Tools |
| Claude Sonnet 4.6claude-sonnet | anthropic/claude-sonnet-4-6 | $3/MTok | $15/MTok | 1M | ReasoningTools |
| Claude Sonnet 4.5 (latest)claude-sonnet | anthropic/claude-sonnet-4-5 | $3/MTok | $15/MTok | 200K | ReasoningTools |
| Kimi K3kimi-k3 | moonshotai/kimi-k3 | $3/MTok | $15/MTok | 1.0M | ReasoningToolsOpen |
| Claude Opus 4.5 (latest)claude-opus | anthropic/claude-opus-4-5 | $5/MTok | $25/MTok | 200K | ReasoningTools |
| Claude Opus 4.6claude-opus | anthropic/claude-opus-4-6 | $5/MTok | $25/MTok | 1M | ReasoningTools |
| Claude Opus 4.7claude-opus | anthropic/claude-opus-4-7 | $5/MTok | $25/MTok | 1M | ReasoningTools |
| Claude Opus 4.8claude-opus | anthropic/claude-opus-4-8 | $5/MTok | $25/MTok | 1M | ReasoningTools |
| GPT 5.6 Solgpt-sol | openai/gpt-5.6-sol | $5/MTok | $30/MTok | 1.1M | ReasoningTools |
| GPT 5.5gpt | openai/gpt-5.5 | $5/MTok | $30/MTok | 1.1M | ReasoningTools |
| Claude Fable 5claude-fable | anthropic/claude-fable-5 | $10/MTok | $50/MTok | 1M | ReasoningTools |
| GPT 4 Turbogpt | openai/gpt-4-turbo | $10/MTok | $30/MTok | 128K | Tools |
| GPT 5 Progpt-pro | openai/gpt-5-pro | $15/MTok | $120/MTok | 400K | ReasoningTools |
| o1o | openai/o1 | $15/MTok | $60/MTok | 200K | ReasoningTools |
| GPT 5.5 Progpt-pro | openai/gpt-5.5-pro | $30/MTok | $180/MTok | 1.1M | ReasoningTools |
| GPT 5.4 Progpt-pro | openai/gpt-5.4-pro | $30/MTok | $180/MTok | 1.1M | ReasoningTools |