agtop 2.4.8

Terminal UI for monitoring AI coding agents (Claude Code, Codex, Aider, Cursor, Gemini, Goose, ...) — like top, but for agents.
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#!/usr/bin/env python3
"""
Pull LiteLLM's community-maintained model price registry and emit
src/pricing_data.rs.  LiteLLM is the closest thing to a canonical
cross-vendor pricing source — used by dozens of agent tools and
updated within days of vendor changes.

Source of truth:
  https://raw.githubusercontent.com/BerriAI/litellm/main/litellm/model_prices_and_context_window_backup.json

Translation:
  - LiteLLM stores cost as USD per token.  We store USD per million tokens.
  - LiteLLM keys are like "gpt-4o", "claude-3-5-sonnet-20241022",
    "gemini/gemini-2.0-flash", "openrouter/openai/gpt-4o".  We strip
    provider prefixes ("gemini/" → "gemini-2.0-flash") so the
    suffix-tolerant lookup in pricing.rs::lookup() can match against
    bare model strings emitted by Claude/Codex/etc transcripts.
  - Skip non-text modalities (audio, image, embedding) — agtop only
    cares about chat/text completion.
  - Skip entries with zero or missing prices — those are local-only
    models (ollama/llama.cpp/etc.); the curated overlay in pricing.rs
    handles those explicitly.

Usage:
  python3 scripts/sync_prices.py            # write src/pricing_data.rs
  python3 scripts/sync_prices.py --check    # exit 1 if file would change
"""
from __future__ import annotations
import argparse, datetime, json, sys, urllib.request, pathlib

LITELLM_URL = (
    "https://raw.githubusercontent.com/BerriAI/litellm/main/"
    "litellm/model_prices_and_context_window_backup.json"
)

# Provider prefixes we strip.  Order matters — longest first.
PROVIDER_PREFIXES = (
    "openrouter/", "vertex_ai/", "vertex_ai-language-models/",
    "vertex_ai-anthropic_models/", "vertex_ai-mistral_models/",
    "bedrock/anthropic.", "bedrock/amazon.", "bedrock/cohere.",
    "bedrock/meta.", "bedrock/", "azure/",
    "anthropic/", "openai/", "gemini/", "groq/", "mistral/",
    "deepseek/", "fireworks_ai/", "together_ai/", "perplexity/",
    "cohere/", "replicate/", "ai21/", "xai/",
)

# Modalities we keep.  LiteLLM's "mode" field is the gate.
KEEP_MODES = {"chat", "completion", "responses"}

# Skip these (no API cost — covered by the local-model overlay).
LOCAL_PREFIXES = ("ollama/", "ollama_chat/", "huggingface/", "vllm/")


def strip_provider(key: str) -> str:
    s = key
    for p in PROVIDER_PREFIXES:
        if s.startswith(p):
            s = s[len(p):]
    return s


def parse_litellm(raw: dict) -> list[tuple[str, float, float, int | None]]:
    """Returns rows of (model, input_per_mtok, output_per_mtok, max_input_tokens)."""
    out: dict[str, tuple[float, float, int | None]] = {}
    for raw_key, entry in raw.items():
        if raw_key == "sample_spec" or not isinstance(entry, dict):
            continue
        if any(raw_key.startswith(p) for p in LOCAL_PREFIXES):
            continue
        mode = entry.get("mode", "")
        if mode and mode not in KEEP_MODES:
            continue
        i = entry.get("input_cost_per_token")
        o = entry.get("output_cost_per_token")
        if i is None or o is None:
            continue
        try:
            i_per_mtok = float(i) * 1_000_000.0
            o_per_mtok = float(o) * 1_000_000.0
        except (TypeError, ValueError):
            continue
        if i_per_mtok <= 0.0 and o_per_mtok <= 0.0:
            continue
        # max_input_tokens drives the TUI's per-agent context-fill bar.
        # LiteLLM uses a few synonymous keys depending on schema version.
        ctx = (
            entry.get("max_input_tokens")
            or entry.get("max_tokens")
            or entry.get("max_context_tokens")
        )
        try:
            ctx = int(ctx) if ctx else None
            if ctx is not None and ctx <= 0:
                ctx = None
        except (TypeError, ValueError):
            ctx = None
        key = strip_provider(raw_key)
        # Resolve duplicates by keeping the highest-cost variant; on
        # context-window collisions, prefer the larger window.
        prev = out.get(key)
        if prev is None or (i_per_mtok + o_per_mtok) > (prev[0] + prev[1]):
            chosen_ctx = max(ctx or 0, prev[2] or 0) if prev else ctx
            out[key] = (i_per_mtok, o_per_mtok, chosen_ctx if chosen_ctx else ctx)
        elif ctx and (prev[2] is None or ctx > prev[2]):
            out[key] = (prev[0], prev[1], ctx)
    return [(k, i, o, ctx) for k, (i, o, ctx) in sorted(out.items())]


def render_rust(rows: list[tuple[str, float, float, int | None]], date: str) -> str:
    lines = [
        "// AUTO-GENERATED by scripts/sync_prices.py — do not edit by hand.",
        "// Source: LiteLLM model_prices_and_context_window_backup.json",
        "// Regenerate via: python3 scripts/sync_prices.py",
        "",
        "use crate::pricing::ModelPrice;",
        "",
        f'pub const PRICES_UPDATED: &str = "{date}";',
        f'pub const PRICES_SOURCE:  &str = "litellm community registry";',
        "",
        f"pub const GENERATED: &[(&str, ModelPrice)] = &[",
    ]
    for k, i, o, ctx in rows:
        # Escape quotes / backslashes defensively (LiteLLM keys are tame
        # but we don't want to trust that forever).
        safe = k.replace("\\", "\\\\").replace('"', '\\"')
        ctx_lit = f"Some({ctx})" if ctx else "None"
        lines.append(
            f'    ("{safe}", ModelPrice {{ '
            f'input_per_mtok: {i:.6}, output_per_mtok: {o:.6}, '
            f'max_input_tokens: {ctx_lit} }}),'
        )
    lines.append("];")
    lines.append("")
    return "\n".join(lines)


def main() -> int:
    ap = argparse.ArgumentParser()
    ap.add_argument("--check", action="store_true",
                    help="Exit 1 if the generated file would change.")
    args = ap.parse_args()

    here = pathlib.Path(__file__).resolve().parent
    out = here.parent / "src" / "pricing_data.rs"

    with urllib.request.urlopen(LITELLM_URL, timeout=30) as r:
        raw = json.load(r)
    rows = parse_litellm(raw)
    if not rows:
        print("ERROR: parsed zero rows from LiteLLM — refusing to overwrite",
              file=sys.stderr)
        return 2

    today = datetime.date.today().isoformat()
    rendered = render_rust(rows, today)

    if args.check:
        existing = out.read_text() if out.exists() else ""
        # Treat the date line as cosmetic — only flag drift on data rows.
        def strip_date(t: str) -> str:
            return "\n".join(
                l for l in t.splitlines()
                if not l.startswith("pub const PRICES_UPDATED:")
            )
        if strip_date(existing) != strip_date(rendered):
            print(f"prices drifted: {len(rows)} models in upstream, "
                  f"{out} would change")
            return 1
        print(f"prices fresh: {len(rows)} models, no change")
        return 0

    out.write_text(rendered)
    print(f"wrote {out} — {len(rows)} models @ {today}")
    return 0


if __name__ == "__main__":
    sys.exit(main())